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Finding the Fourth Proportional to 167,591.72, 231,351.13 and 99,630.70

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Solution

The fourth proportional to 167,591.72, 231,351.13 and 99,630.70 is: 137,534.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,591.72 : 231,351.13 = 99,630.70 : x
  2. Step 2: Convert to fraction form
    167,591.72/231,351.13 = 99,630.70/x
  3. Step 3: Cross multiply
    167,591.72x = 231,351.13 × 99,630.70
  4. Step 4: Simplify right side
    167,591.72x = 23,049,673,372.78
  5. Step 5: Solve for x
    x = 23,049,673,372.78/167,591.72
  6. Step 6: Final answer
    x = 137,534.68

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1.5x scale

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.