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Finding the Fourth Proportional to 167.24, 251.24 and 103.16

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Solution

The fourth proportional to 167.24, 251.24 and 103.16 is: 154.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.24 : 251.24 = 103.16 : x
  2. Step 2: Convert to fraction form
    167.24/251.24 = 103.16/x
  3. Step 3: Cross multiply
    167.24x = 251.24 × 103.16
  4. Step 4: Simplify right side
    167.24x = 25,917.92
  5. Step 5: Solve for x
    x = 25,917.92/167.24
  6. Step 6: Final answer
    x = 154.97

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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.