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Finding the Fourth Proportional to 168.29, 252.42 and 44.88

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Solution

The fourth proportional to 168.29, 252.42 and 44.88 is: 67.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.29 : 252.42 = 44.88 : x
  2. Step 2: Convert to fraction form
    168.29/252.42 = 44.88/x
  3. Step 3: Cross multiply
    168.29x = 252.42 × 44.88
  4. Step 4: Simplify right side
    168.29x = 11,328.61
  5. Step 5: Solve for x
    x = 11,328.61/168.29
  6. Step 6: Final answer
    x = 67.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.