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Finding the Fourth Proportional to 239,809.41, 330,939.27 and 132,377.13

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Solution

The fourth proportional to 239,809.41, 330,939.27 and 132,377.13 is: 182,681.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,809.41 : 330,939.27 = 132,377.13 : x
  2. Step 2: Convert to fraction form
    239,809.41/330,939.27 = 132,377.13/x
  3. Step 3: Cross multiply
    239,809.41x = 330,939.27 × 132,377.13
  4. Step 4: Simplify right side
    239,809.41x = 43,808,790,766.90
  5. Step 5: Solve for x
    x = 43,808,790,766.90/239,809.41
  6. Step 6: Final answer
    x = 182,681.70

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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.