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Finding the Fourth Proportional to 112.11, 167.37 and 94.88

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Solution

The fourth proportional to 112.11, 167.37 and 94.88 is: 141.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112.11 : 167.37 = 94.88 : x
  2. Step 2: Convert to fraction form
    112.11/167.37 = 94.88/x
  3. Step 3: Cross multiply
    112.11x = 167.37 × 94.88
  4. Step 4: Simplify right side
    112.11x = 15,878.75
  5. Step 5: Solve for x
    x = 15,878.75/112.11
  6. Step 6: Final answer
    x = 141.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.