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Finding the Fourth Proportional to 325,737.43, 488,593.36 and 136,148.83

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Solution

The fourth proportional to 325,737.43, 488,593.36 and 136,148.83 is: 204,217.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,737.43 : 488,593.36 = 136,148.83 : x
  2. Step 2: Convert to fraction form
    325,737.43/488,593.36 = 136,148.83/x
  3. Step 3: Cross multiply
    325,737.43x = 488,593.36 × 136,148.83
  4. Step 4: Simplify right side
    325,737.43x = 66,521,414,309.77
  5. Step 5: Solve for x
    x = 66,521,414,309.77/325,737.43
  6. Step 6: Final answer
    x = 204,217.90

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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.