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Finding the Fourth Proportional to 167.73, 251.81 and 133.92

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Solution

The fourth proportional to 167.73, 251.81 and 133.92 is: 201.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.73 : 251.81 = 133.92 : x
  2. Step 2: Convert to fraction form
    167.73/251.81 = 133.92/x
  3. Step 3: Cross multiply
    167.73x = 251.81 × 133.92
  4. Step 4: Simplify right side
    167.73x = 33,722.40
  5. Step 5: Solve for x
    x = 33,722.40/167.73
  6. Step 6: Final answer
    x = 201.05

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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.