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Finding the Fourth Proportional to 168.17, 232.01 and 105.98

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Solution

The fourth proportional to 168.17, 232.01 and 105.98 is: 146.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.17 : 232.01 = 105.98 : x
  2. Step 2: Convert to fraction form
    168.17/232.01 = 105.98/x
  3. Step 3: Cross multiply
    168.17x = 232.01 × 105.98
  4. Step 4: Simplify right side
    168.17x = 24,586.73
  5. Step 5: Solve for x
    x = 24,586.73/168.17
  6. Step 6: Final answer
    x = 146.21

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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.