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Finding the Fourth Proportional to 239,691.88, 330,774.54 and 132,261.88

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Solution

The fourth proportional to 239,691.88, 330,774.54 and 132,261.88 is: 182,521.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,691.88 : 330,774.54 = 132,261.88 : x
  2. Step 2: Convert to fraction form
    239,691.88/330,774.54 = 132,261.88/x
  3. Step 3: Cross multiply
    239,691.88x = 330,774.54 × 132,261.88
  4. Step 4: Simplify right side
    239,691.88x = 43,748,862,516.54
  5. Step 5: Solve for x
    x = 43,748,862,516.54/239,691.88
  6. Step 6: Final answer
    x = 182,521.25

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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.