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Finding the Fourth Proportional to 111.67, 167.38 and 62.94

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Solution

The fourth proportional to 111.67, 167.38 and 62.94 is: 94.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    111.67 : 167.38 = 62.94 : x
  2. Step 2: Convert to fraction form
    111.67/167.38 = 62.94/x
  3. Step 3: Cross multiply
    111.67x = 167.38 × 62.94
  4. Step 4: Simplify right side
    111.67x = 10,534.58
  5. Step 5: Solve for x
    x = 10,534.58/111.67
  6. Step 6: Final answer
    x = 94.34

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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.