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Finding the Fourth Proportional to 168.97, 232.99 and 106.73

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Solution

The fourth proportional to 168.97, 232.99 and 106.73 is: 147.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.97 : 232.99 = 106.73 : x
  2. Step 2: Convert to fraction form
    168.97/232.99 = 106.73/x
  3. Step 3: Cross multiply
    168.97x = 232.99 × 106.73
  4. Step 4: Simplify right side
    168.97x = 24,867.02
  5. Step 5: Solve for x
    x = 24,867.02/168.97
  6. Step 6: Final answer
    x = 147.17

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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.