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Finding the Fourth Proportional to 108,772.88, 163,159.31 and 38,654.96

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Solution

The fourth proportional to 108,772.88, 163,159.31 and 38,654.96 is: 57,982.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,772.88 : 163,159.31 = 38,654.96 : x
  2. Step 2: Convert to fraction form
    108,772.88/163,159.31 = 38,654.96/x
  3. Step 3: Cross multiply
    108,772.88x = 163,159.31 × 38,654.96
  4. Step 4: Simplify right side
    108,772.88x = 6,306,915,882.52
  5. Step 5: Solve for x
    x = 6,306,915,882.52/108,772.88
  6. Step 6: Final answer
    x = 57,982.43

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Double scale
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Similar ratio
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1.5x scale

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.