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Finding the Fourth Proportional to 239.52, 360.09 and 167.43

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Solution

The fourth proportional to 239.52, 360.09 and 167.43 is: 251.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.52 : 360.09 = 167.43 : x
  2. Step 2: Convert to fraction form
    239.52/360.09 = 167.43/x
  3. Step 3: Cross multiply
    239.52x = 360.09 × 167.43
  4. Step 4: Simplify right side
    239.52x = 60,289.87
  5. Step 5: Solve for x
    x = 60,289.87/239.52
  6. Step 6: Final answer
    x = 251.71

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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.