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Finding the Fourth Proportional to 168.35, 252.42 and 117.01

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Solution

The fourth proportional to 168.35, 252.42 and 117.01 is: 175.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.35 : 252.42 = 117.01 : x
  2. Step 2: Convert to fraction form
    168.35/252.42 = 117.01/x
  3. Step 3: Cross multiply
    168.35x = 252.42 × 117.01
  4. Step 4: Simplify right side
    168.35x = 29,535.54
  5. Step 5: Solve for x
    x = 29,535.54/168.35
  6. Step 6: Final answer
    x = 175.45

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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.