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Finding the Fourth Proportional to 239,641.91, 359,189.54 and 149,725.97

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Solution

The fourth proportional to 239,641.91, 359,189.54 and 149,725.97 is: 224,418.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,641.91 : 359,189.54 = 149,725.97 : x
  2. Step 2: Convert to fraction form
    239,641.91/359,189.54 = 149,725.97/x
  3. Step 3: Cross multiply
    239,641.91x = 359,189.54 × 149,725.97
  4. Step 4: Simplify right side
    239,641.91x = 53,780,002,439.70
  5. Step 5: Solve for x
    x = 53,780,002,439.70/239,641.91
  6. Step 6: Final answer
    x = 224,418.18

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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.