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Finding the Fourth Proportional to 363,836,700.90, 545,755,051.35 and 200,011,155.30

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Solution

The fourth proportional to 363,836,700.90, 545,755,051.35 and 200,011,155.30 is: 300,016,732.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,836,700.90 : 545,755,051.35 = 200,011,155.30 : x
  2. Step 2: Convert to fraction form
    363,836,700.90/545,755,051.35 = 200,011,155.30/x
  3. Step 3: Cross multiply
    363,836,700.90x = 545,755,051.35 × 200,011,155.30
  4. Step 4: Simplify right side
    363,836,700.90x = 109,157,098,331,324,336
  5. Step 5: Solve for x
    x = 109,157,098,331,324,336/363,836,700.90
  6. Step 6: Final answer
    x = 300,016,732.95

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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.