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Finding the Fourth Proportional to 387,151.82, 580,727.73 and 150,549.86

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Solution

The fourth proportional to 387,151.82, 580,727.73 and 150,549.86 is: 225,824.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,151.82 : 580,727.73 = 150,549.86 : x
  2. Step 2: Convert to fraction form
    387,151.82/580,727.73 = 150,549.86/x
  3. Step 3: Cross multiply
    387,151.82x = 580,727.73 × 150,549.86
  4. Step 4: Simplify right side
    387,151.82x = 87,428,475,545.98
  5. Step 5: Solve for x
    x = 87,428,475,545.98/387,151.82
  6. Step 6: Final answer
    x = 225,824.79

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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.