Assume in your daily transactions, you always pay with cash. I know, it strains credibility, but suppose you're Robinson and no bank or card company will deal with you.
Assume you have a large change receptacle in your car (call it gallon size, for fun, doesn't much matter) and you always, always put all your loose coin change in said receptacle.
Assume each and every store clerk logically selects proper coin denominations in giving you change, i.e. they wouldn't give you six pennies in lieu of a nickel and penny.
Assume denominations of pennies, nickels, dimes, quarters only; that half-dollar and dollar coins do not exist, as they almost don't anyway.
Last assumption, assume you're not the type of person to nitpick puzzle wording.
When the receptacle is full, you dump it out and separate the coins according to their denominations.
What are the ratios of of the differing denominations?
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