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Finding the Fourth Proportional to 132,171.96, 198,270.52 and 43,425.96

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Solution

The fourth proportional to 132,171.96, 198,270.52 and 43,425.96 is: 65,143.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,171.96 : 198,270.52 = 43,425.96 : x
  2. Step 2: Convert to fraction form
    132,171.96/198,270.52 = 43,425.96/x
  3. Step 3: Cross multiply
    132,171.96x = 198,270.52 × 43,425.96
  4. Step 4: Simplify right side
    132,171.96x = 8,610,087,670.70
  5. Step 5: Solve for x
    x = 8,610,087,670.70/132,171.96
  6. Step 6: Final answer
    x = 65,143.07

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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.