The richest people in America

Published On: Sep 22 2012 07:00:34 PM PDT   Updated On: Sep 16 2013 11:00:00 PM PDT

Buoyed by public markets, the average net worth of the richest people in America has hit a record $5 billion.

Charles Koch
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4. Charles Koch (tie), along with brother David, Charles is co-owner and executive vice president of Koch Industries. Net worth: $36 billion.

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