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Finding the Fourth Proportional to 387,251.92, 580,913.72 and 150,612.56

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Solution

The fourth proportional to 387,251.92, 580,913.72 and 150,612.56 is: 225,932.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,251.92 : 580,913.72 = 150,612.56 : x
  2. Step 2: Convert to fraction form
    387,251.92/580,913.72 = 150,612.56/x
  3. Step 3: Cross multiply
    387,251.92x = 580,913.72 × 150,612.56
  4. Step 4: Simplify right side
    387,251.92x = 87,492,902,508.32
  5. Step 5: Solve for x
    x = 87,492,902,508.32/387,251.92
  6. Step 6: Final answer
    x = 225,932.78

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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.