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Finding the Fourth Proportional to 252.53, 348.17 and 163.87

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Solution

The fourth proportional to 252.53, 348.17 and 163.87 is: 225.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.53 : 348.17 = 163.87 : x
  2. Step 2: Convert to fraction form
    252.53/348.17 = 163.87/x
  3. Step 3: Cross multiply
    252.53x = 348.17 × 163.87
  4. Step 4: Simplify right side
    252.53x = 57,052.93
  5. Step 5: Solve for x
    x = 57,052.93/252.53
  6. Step 6: Final answer
    x = 225.93

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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.