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Finding the Fourth Proportional to 167.11, 250.62 and 69.50

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Solution

The fourth proportional to 167.11, 250.62 and 69.50 is: 104.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.11 : 250.62 = 69.50 : x
  2. Step 2: Convert to fraction form
    167.11/250.62 = 69.50/x
  3. Step 3: Cross multiply
    167.11x = 250.62 × 69.50
  4. Step 4: Simplify right side
    167.11x = 17,418.09
  5. Step 5: Solve for x
    x = 17,418.09/167.11
  6. Step 6: Final answer
    x = 104.23

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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.