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Finding the Fourth Proportional to 149,871.66, 206,915.13 and 96,251.18

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Solution

The fourth proportional to 149,871.66, 206,915.13 and 96,251.18 is: 132,885.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,871.66 : 206,915.13 = 96,251.18 : x
  2. Step 2: Convert to fraction form
    149,871.66/206,915.13 = 96,251.18/x
  3. Step 3: Cross multiply
    149,871.66x = 206,915.13 × 96,251.18
  4. Step 4: Simplify right side
    149,871.66x = 19,915,824,387.78
  5. Step 5: Solve for x
    x = 19,915,824,387.78/149,871.66
  6. Step 6: Final answer
    x = 132,885.86

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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.