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Finding the Fourth Proportional to 167.38, 250.82 and 133

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Solution

The fourth proportional to 167.38, 250.82 and 133 is: 199.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.38 : 250.82 = 133 : x
  2. Step 2: Convert to fraction form
    167.38/250.82 = 133/x
  3. Step 3: Cross multiply
    167.38x = 250.82 × 133
  4. Step 4: Simplify right side
    167.38x = 33,359.06
  5. Step 5: Solve for x
    x = 33,359.06/167.38
  6. Step 6: Final answer
    x = 199.30

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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.