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Finding the Fourth Proportional to 167.42, 250.61 and 106.60

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Solution

The fourth proportional to 167.42, 250.61 and 106.60 is: 159.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.42 : 250.61 = 106.60 : x
  2. Step 2: Convert to fraction form
    167.42/250.61 = 106.60/x
  3. Step 3: Cross multiply
    167.42x = 250.61 × 106.60
  4. Step 4: Simplify right side
    167.42x = 26,714.94
  5. Step 5: Solve for x
    x = 26,714.94/167.42
  6. Step 6: Final answer
    x = 159.57

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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.