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Finding the Fourth Proportional to 167.84, 251.76 and 147.41

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Solution

The fourth proportional to 167.84, 251.76 and 147.41 is: 221.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.84 : 251.76 = 147.41 : x
  2. Step 2: Convert to fraction form
    167.84/251.76 = 147.41/x
  3. Step 3: Cross multiply
    167.84x = 251.76 × 147.41
  4. Step 4: Simplify right side
    167.84x = 37,110.68
  5. Step 5: Solve for x
    x = 37,110.68/167.84
  6. Step 6: Final answer
    x = 221.11

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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.