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Finding the Fourth Proportional to 167.37, 251.16 and 106.56

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Solution

The fourth proportional to 167.37, 251.16 and 106.56 is: 159.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.37 : 251.16 = 106.56 : x
  2. Step 2: Convert to fraction form
    167.37/251.16 = 106.56/x
  3. Step 3: Cross multiply
    167.37x = 251.16 × 106.56
  4. Step 4: Simplify right side
    167.37x = 26,763.61
  5. Step 5: Solve for x
    x = 26,763.61/167.37
  6. Step 6: Final answer
    x = 159.91

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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.