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Finding the Fourth Proportional to 167.91, 251.61 and 95.67

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Solution

The fourth proportional to 167.91, 251.61 and 95.67 is: 143.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.91 : 251.61 = 95.67 : x
  2. Step 2: Convert to fraction form
    167.91/251.61 = 95.67/x
  3. Step 3: Cross multiply
    167.91x = 251.61 × 95.67
  4. Step 4: Simplify right side
    167.91x = 24,071.53
  5. Step 5: Solve for x
    x = 24,071.53/167.91
  6. Step 6: Final answer
    x = 143.36

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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.