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Finding the Fourth Proportional to 168.14, 252.20 and 116.63

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Solution

The fourth proportional to 168.14, 252.20 and 116.63 is: 174.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.14 : 252.20 = 116.63 : x
  2. Step 2: Convert to fraction form
    168.14/252.20 = 116.63/x
  3. Step 3: Cross multiply
    168.14x = 252.20 × 116.63
  4. Step 4: Simplify right side
    168.14x = 29,412.24
  5. Step 5: Solve for x
    x = 29,412.24/168.14
  6. Step 6: Final answer
    x = 174.93

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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.