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Finding the Fourth Proportional to 167.24, 251.04 and 141.68

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Solution

The fourth proportional to 167.24, 251.04 and 141.68 is: 212.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.24 : 251.04 = 141.68 : x
  2. Step 2: Convert to fraction form
    167.24/251.04 = 141.68/x
  3. Step 3: Cross multiply
    167.24x = 251.04 × 141.68
  4. Step 4: Simplify right side
    167.24x = 35,567.35
  5. Step 5: Solve for x
    x = 35,567.35/167.24
  6. Step 6: Final answer
    x = 212.67

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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.