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Finding the Fourth Proportional to 168.53, 232.57 and 94.86

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Solution

The fourth proportional to 168.53, 232.57 and 94.86 is: 130.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.53 : 232.57 = 94.86 : x
  2. Step 2: Convert to fraction form
    168.53/232.57 = 94.86/x
  3. Step 3: Cross multiply
    168.53x = 232.57 × 94.86
  4. Step 4: Simplify right side
    168.53x = 22,061.59
  5. Step 5: Solve for x
    x = 22,061.59/168.53
  6. Step 6: Final answer
    x = 130.91

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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.