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Finding the Fourth Proportional to 132,471.25, 198,658.27 and 43,698.49

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Solution

The fourth proportional to 132,471.25, 198,658.27 and 43,698.49 is: 65,531.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,471.25 : 198,658.27 = 43,698.49 : x
  2. Step 2: Convert to fraction form
    132,471.25/198,658.27 = 43,698.49/x
  3. Step 3: Cross multiply
    132,471.25x = 198,658.27 × 43,698.49
  4. Step 4: Simplify right side
    132,471.25x = 8,681,066,425.01
  5. Step 5: Solve for x
    x = 8,681,066,425.01/132,471.25
  6. Step 6: Final answer
    x = 65,531.70

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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.