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Finding the Fourth Proportional to 167.22, 250.68 and 106.18

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Solution

The fourth proportional to 167.22, 250.68 and 106.18 is: 159.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.22 : 250.68 = 106.18 : x
  2. Step 2: Convert to fraction form
    167.22/250.68 = 106.18/x
  3. Step 3: Cross multiply
    167.22x = 250.68 × 106.18
  4. Step 4: Simplify right side
    167.22x = 26,617.20
  5. Step 5: Solve for x
    x = 26,617.20/167.22
  6. Step 6: Final answer
    x = 159.17

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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.