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Finding the Fourth Proportional to 168.22, 252.24 and 110.47

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Solution

The fourth proportional to 168.22, 252.24 and 110.47 is: 165.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.22 : 252.24 = 110.47 : x
  2. Step 2: Convert to fraction form
    168.22/252.24 = 110.47/x
  3. Step 3: Cross multiply
    168.22x = 252.24 × 110.47
  4. Step 4: Simplify right side
    168.22x = 27,865.40
  5. Step 5: Solve for x
    x = 27,865.40/168.22
  6. Step 6: Final answer
    x = 165.65

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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.