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Finding the Fourth Proportional to 250,725.35, 375,734.39 and 138,456.11

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Solution

The fourth proportional to 250,725.35, 375,734.39 and 138,456.11 is: 207,488.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,725.35 : 375,734.39 = 138,456.11 : x
  2. Step 2: Convert to fraction form
    250,725.35/375,734.39 = 138,456.11/x
  3. Step 3: Cross multiply
    250,725.35x = 375,734.39 × 138,456.11
  4. Step 4: Simplify right side
    250,725.35x = 52,022,722,032.62
  5. Step 5: Solve for x
    x = 52,022,722,032.62/250,725.35
  6. Step 6: Final answer
    x = 207,488.88

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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.