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Finding the Fourth Proportional to 167.41, 230.90 and 112.08

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Solution

The fourth proportional to 167.41, 230.90 and 112.08 is: 154.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.41 : 230.90 = 112.08 : x
  2. Step 2: Convert to fraction form
    167.41/230.90 = 112.08/x
  3. Step 3: Cross multiply
    167.41x = 230.90 × 112.08
  4. Step 4: Simplify right side
    167.41x = 25,879.58
  5. Step 5: Solve for x
    x = 25,879.58/167.41
  6. Step 6: Final answer
    x = 154.59

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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.