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Finding the Fourth Proportional to 168.25, 252.38 and 94.94

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Solution

The fourth proportional to 168.25, 252.38 and 94.94 is: 142.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.25 : 252.38 = 94.94 : x
  2. Step 2: Convert to fraction form
    168.25/252.38 = 94.94/x
  3. Step 3: Cross multiply
    168.25x = 252.38 × 94.94
  4. Step 4: Simplify right side
    168.25x = 23,961.11
  5. Step 5: Solve for x
    x = 23,961.11/168.25
  6. Step 6: Final answer
    x = 142.42

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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.