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Finding the Fourth Proportional to 167,402.70, 231,005.52 and 91,951.20

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Solution

The fourth proportional to 167,402.70, 231,005.52 and 91,951.20 is: 126,887.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,402.70 : 231,005.52 = 91,951.20 : x
  2. Step 2: Convert to fraction form
    167,402.70/231,005.52 = 91,951.20/x
  3. Step 3: Cross multiply
    167,402.70x = 231,005.52 × 91,951.20
  4. Step 4: Simplify right side
    167,402.70x = 21,241,234,770.62
  5. Step 5: Solve for x
    x = 21,241,234,770.62/167,402.70
  6. Step 6: Final answer
    x = 126,887.05

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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.