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Finding the Fourth Proportional to 168.04, 252.24 and 122.44

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Solution

The fourth proportional to 168.04, 252.24 and 122.44 is: 183.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.04 : 252.24 = 122.44 : x
  2. Step 2: Convert to fraction form
    168.04/252.24 = 122.44/x
  3. Step 3: Cross multiply
    168.04x = 252.24 × 122.44
  4. Step 4: Simplify right side
    168.04x = 30,884.27
  5. Step 5: Solve for x
    x = 30,884.27/168.04
  6. Step 6: Final answer
    x = 183.79

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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.