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Finding the Fourth Proportional to 92,572,685.40, 138,859,028.10 and 92,572,685.40

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Solution

The fourth proportional to 92,572,685.40, 138,859,028.10 and 92,572,685.40 is: 138,859,028.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,572,685.40 : 138,859,028.10 = 92,572,685.40 : x
  2. Step 2: Convert to fraction form
    92,572,685.40/138,859,028.10 = 92,572,685.40/x
  3. Step 3: Cross multiply
    92,572,685.40x = 138,859,028.10 × 92,572,685.40
  4. Step 4: Simplify right side
    92,572,685.40x = 12,854,553,123,251,060
  5. Step 5: Solve for x
    x = 12,854,553,123,251,060/92,572,685.40
  6. Step 6: Final answer
    x = 138,859,028.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.