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Finding the Fourth Proportional to 167.27, 250.86 and 45.50

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Solution

The fourth proportional to 167.27, 250.86 and 45.50 is: 68.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.27 : 250.86 = 45.50 : x
  2. Step 2: Convert to fraction form
    167.27/250.86 = 45.50/x
  3. Step 3: Cross multiply
    167.27x = 250.86 × 45.50
  4. Step 4: Simplify right side
    167.27x = 11,414.93
  5. Step 5: Solve for x
    x = 11,414.93/167.27
  6. Step 6: Final answer
    x = 68.24

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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.