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Finding the Fourth Proportional to 112, 167.97 and 34.94

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Solution

The fourth proportional to 112, 167.97 and 34.94 is: 52.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112 : 167.97 = 34.94 : x
  2. Step 2: Convert to fraction form
    112/167.97 = 34.94/x
  3. Step 3: Cross multiply
    112x = 167.97 × 34.94
  4. Step 4: Simplify right side
    112x = 5,868.87
  5. Step 5: Solve for x
    x = 5,868.87/112
  6. Step 6: Final answer
    x = 52.40

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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.