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Finding the Fourth Proportional to 65,175,310.80, 91,500,526.80 and 65,175,310.80

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Solution

The fourth proportional to 65,175,310.80, 91,500,526.80 and 65,175,310.80 is: 91,500,526.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,175,310.80 : 91,500,526.80 = 65,175,310.80 : x
  2. Step 2: Convert to fraction form
    65,175,310.80/91,500,526.80 = 65,175,310.80/x
  3. Step 3: Cross multiply
    65,175,310.80x = 91,500,526.80 × 65,175,310.80
  4. Step 4: Simplify right side
    65,175,310.80x = 5,963,575,272,553,729
  5. Step 5: Solve for x
    x = 5,963,575,272,553,729/65,175,310.80
  6. Step 6: Final answer
    x = 91,500,526.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.