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Finding the Fourth Proportional to 167.58, 251.37 and 106.74

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Solution

The fourth proportional to 167.58, 251.37 and 106.74 is: 160.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.58 : 251.37 = 106.74 : x
  2. Step 2: Convert to fraction form
    167.58/251.37 = 106.74/x
  3. Step 3: Cross multiply
    167.58x = 251.37 × 106.74
  4. Step 4: Simplify right side
    167.58x = 26,831.23
  5. Step 5: Solve for x
    x = 26,831.23/167.58
  6. Step 6: Final answer
    x = 160.11

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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.