Position(s) of the Large after multiplication

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In my example I've got components of 5 combinations in B5:C9 to be multiplied, Extra is added to each of the B5:B9 and C5:C9 array(s) when calculating the Largest product of those arrays. Instead of listing the results of the multiplication I'd like their Labels from A5:A9 instead as a minimum, however the entire row (example: A7:C7) would be my next step.

I want to reference a much larger combination array but not repeat it in 16 sheets, the Extra values and largest 4 products would be unique to each sheet. I currently have a INDEX/MATCH 16-Item Drop down system currently on one array but further expansion to that gets cumbersome.

 

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If I give myself helper columns, with the math finished, adjacent to the reference to compare to I should have a WIP-workaround

My hunch is the calculation load may be about the same for any solution for my original request.

 

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An idea of what I ended up idea-wise on the pretend sheet.

It's been fully implemented(imgur.com), ended up a 21,660 cell array with tolerable latency. Halved the size from 1MB to 512kb.
Excel Magic Trick 967 also helped me avoid duplicates, in the J-section of the mock up, for any future googlers