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Finding the Fourth Proportional to 137,472.96, 207,145.92 and 113,059.80

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Solution

The fourth proportional to 137,472.96, 207,145.92 and 113,059.80 is: 170,359.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,472.96 : 207,145.92 = 113,059.80 : x
  2. Step 2: Convert to fraction form
    137,472.96/207,145.92 = 113,059.80/x
  3. Step 3: Cross multiply
    137,472.96x = 207,145.92 × 113,059.80
  4. Step 4: Simplify right side
    137,472.96x = 23,419,876,286.02
  5. Step 5: Solve for x
    x = 23,419,876,286.02/137,472.96
  6. Step 6: Final answer
    x = 170,359.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.