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Finding the Fourth Proportional to 167.44, 231.26 and 112.08

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Solution

The fourth proportional to 167.44, 231.26 and 112.08 is: 154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.44 : 231.26 = 112.08 : x
  2. Step 2: Convert to fraction form
    167.44/231.26 = 112.08/x
  3. Step 3: Cross multiply
    167.44x = 231.26 × 112.08
  4. Step 4: Simplify right side
    167.44x = 25,919.62
  5. Step 5: Solve for x
    x = 25,919.62/167.44
  6. Step 6: Final answer
    x = 154.80

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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.