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Finding the Fourth Proportional to 167.24, 250.68 and 75.84

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Solution

The fourth proportional to 167.24, 250.68 and 75.84 is: 113.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.24 : 250.68 = 75.84 : x
  2. Step 2: Convert to fraction form
    167.24/250.68 = 75.84/x
  3. Step 3: Cross multiply
    167.24x = 250.68 × 75.84
  4. Step 4: Simplify right side
    167.24x = 19,011.57
  5. Step 5: Solve for x
    x = 19,011.57/167.24
  6. Step 6: Final answer
    x = 113.68

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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.