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Finding the Fourth Proportional to 239,700.20, 330,773.40 and 132,249.20

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Solution

The fourth proportional to 239,700.20, 330,773.40 and 132,249.20 is: 182,496.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,700.20 : 330,773.40 = 132,249.20 : x
  2. Step 2: Convert to fraction form
    239,700.20/330,773.40 = 132,249.20/x
  3. Step 3: Cross multiply
    239,700.20x = 330,773.40 × 132,249.20
  4. Step 4: Simplify right side
    239,700.20x = 43,744,517,531.28
  5. Step 5: Solve for x
    x = 43,744,517,531.28/239,700.20
  6. Step 6: Final answer
    x = 182,496.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.