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Finding the Fourth Proportional to 103,799,553.80, 155,687,520.90 and 27,130,332.20

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Solution

The fourth proportional to 103,799,553.80, 155,687,520.90 and 27,130,332.20 is: 40,692,411.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,799,553.80 : 155,687,520.90 = 27,130,332.20 : x
  2. Step 2: Convert to fraction form
    103,799,553.80/155,687,520.90 = 27,130,332.20/x
  3. Step 3: Cross multiply
    103,799,553.80x = 155,687,520.90 × 27,130,332.20
  4. Step 4: Simplify right side
    103,799,553.80x = 4,223,854,161,411,443
  5. Step 5: Solve for x
    x = 4,223,854,161,411,443/103,799,553.80
  6. Step 6: Final answer
    x = 40,692,411.54

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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.