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Finding the Fourth Proportional to 363,791,445.90, 545,691,834.45 and 121,454,349.90

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Solution

The fourth proportional to 363,791,445.90, 545,691,834.45 and 121,454,349.90 is: 182,183,082.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,791,445.90 : 545,691,834.45 = 121,454,349.90 : x
  2. Step 2: Convert to fraction form
    363,791,445.90/545,691,834.45 = 121,454,349.90/x
  3. Step 3: Cross multiply
    363,791,445.90x = 545,691,834.45 × 121,454,349.90
  4. Step 4: Simplify right side
    363,791,445.90x = 66,276,646,998,863,184
  5. Step 5: Solve for x
    x = 66,276,646,998,863,184/363,791,445.90
  6. Step 6: Final answer
    x = 182,183,082.49

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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.