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Finding the Fourth Proportional to 63,787,711.70, 95,681,567.55 and 60,428,479.70

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Solution

The fourth proportional to 63,787,711.70, 95,681,567.55 and 60,428,479.70 is: 90,642,719.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,787,711.70 : 95,681,567.55 = 60,428,479.70 : x
  2. Step 2: Convert to fraction form
    63,787,711.70/95,681,567.55 = 60,428,479.70/x
  3. Step 3: Cross multiply
    63,787,711.70x = 95,681,567.55 × 60,428,479.70
  4. Step 4: Simplify right side
    63,787,711.70x = 5,781,891,662,359,354
  5. Step 5: Solve for x
    x = 5,781,891,662,359,354/63,787,711.70
  6. Step 6: Final answer
    x = 90,642,719.55

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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.