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Finding the Fourth Proportional to 126,355.62, 174,344.31 and 73,957.80

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Solution

The fourth proportional to 126,355.62, 174,344.31 and 73,957.80 is: 102,046.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,355.62 : 174,344.31 = 73,957.80 : x
  2. Step 2: Convert to fraction form
    126,355.62/174,344.31 = 73,957.80/x
  3. Step 3: Cross multiply
    126,355.62x = 174,344.31 × 73,957.80
  4. Step 4: Simplify right side
    126,355.62x = 12,894,121,610.12
  5. Step 5: Solve for x
    x = 12,894,121,610.12/126,355.62
  6. Step 6: Final answer
    x = 102,046.29

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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.