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Finding the Fourth Proportional to 111.76, 167.67 and 34.73

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Solution

The fourth proportional to 111.76, 167.67 and 34.73 is: 52.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111.76 : 167.67 = 34.73 : x
  2. Step 2: Convert to fraction form
    111.76/167.67 = 34.73/x
  3. Step 3: Cross multiply
    111.76x = 167.67 × 34.73
  4. Step 4: Simplify right side
    111.76x = 5,823.18
  5. Step 5: Solve for x
    x = 5,823.18/111.76
  6. Step 6: Final answer
    x = 52.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.