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Finding the Fourth Proportional to 207,931,753.60, 311,897,630.40 and 54,593,310.40

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Solution

The fourth proportional to 207,931,753.60, 311,897,630.40 and 54,593,310.40 is: 81,889,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,931,753.60 : 311,897,630.40 = 54,593,310.40 : x
  2. Step 2: Convert to fraction form
    207,931,753.60/311,897,630.40 = 54,593,310.40/x
  3. Step 3: Cross multiply
    207,931,753.60x = 311,897,630.40 × 54,593,310.40
  4. Step 4: Simplify right side
    207,931,753.60x = 17,027,524,149,451,674
  5. Step 5: Solve for x
    x = 17,027,524,149,451,674/207,931,753.60
  6. Step 6: Final answer
    x = 81,889,965.60

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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.