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Finding the Fourth Proportional to 167.33, 231.05 and 134.74

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Solution

The fourth proportional to 167.33, 231.05 and 134.74 is: 186.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.33 : 231.05 = 134.74 : x
  2. Step 2: Convert to fraction form
    167.33/231.05 = 134.74/x
  3. Step 3: Cross multiply
    167.33x = 231.05 × 134.74
  4. Step 4: Simplify right side
    167.33x = 31,129.85
  5. Step 5: Solve for x
    x = 31,129.85/167.33
  6. Step 6: Final answer
    x = 186.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.