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Finding the Fourth Proportional to 60,571,854.60, 90,857,781.90 and 36,385,384.20

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Solution

The fourth proportional to 60,571,854.60, 90,857,781.90 and 36,385,384.20 is: 54,578,076.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,571,854.60 : 90,857,781.90 = 36,385,384.20 : x
  2. Step 2: Convert to fraction form
    60,571,854.60/90,857,781.90 = 36,385,384.20/x
  3. Step 3: Cross multiply
    60,571,854.60x = 90,857,781.90 × 36,385,384.20
  4. Step 4: Simplify right side
    60,571,854.60x = 3,305,895,301,991,306.50
  5. Step 5: Solve for x
    x = 3,305,895,301,991,306.50/60,571,854.60
  6. Step 6: Final answer
    x = 54,578,076.30

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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.