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Finding the Fourth Proportional to 167,793.80, 231,557.82 and 91,315.22

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Solution

The fourth proportional to 167,793.80, 231,557.82 and 91,315.22 is: 126,016.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,793.80 : 231,557.82 = 91,315.22 : x
  2. Step 2: Convert to fraction form
    167,793.80/231,557.82 = 91,315.22/x
  3. Step 3: Cross multiply
    167,793.80x = 231,557.82 × 91,315.22
  4. Step 4: Simplify right side
    167,793.80x = 21,144,753,276.02
  5. Step 5: Solve for x
    x = 21,144,753,276.02/167,793.80
  6. Step 6: Final answer
    x = 126,016.30

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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.