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Bloomberg Markets' 50 Most Influential

By Bloomberg Markets - 2012-09-05T07:58:26Z

Photographs by Justin Lane/epa/Corbis, Bo Rader/Wichita Eagle/MCT via Getty Images

Company Symbol % Change
5 of 55

Koch Brothers

Co-founders, Koch Industries Inc.

David Koch, left, 72, and brother Charles, 76, have a combined fortune that, as of mid-August, was about $10 billion bigger than Bill Gates's. The siblings set the standard for American titans who seek influence in politics.

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