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Finding the Fourth Proportional to 167.51, 251.27 and 106.76

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Solution

The fourth proportional to 167.51, 251.27 and 106.76 is: 160.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.51 : 251.27 = 106.76 : x
  2. Step 2: Convert to fraction form
    167.51/251.27 = 106.76/x
  3. Step 3: Cross multiply
    167.51x = 251.27 × 106.76
  4. Step 4: Simplify right side
    167.51x = 26,823.80
  5. Step 5: Solve for x
    x = 26,823.80/167.51
  6. Step 6: Final answer
    x = 160.14

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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.