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Finding the Fourth Proportional to 167.13, 250.65 and 70.92

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Solution

The fourth proportional to 167.13, 250.65 and 70.92 is: 106.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.13 : 250.65 = 70.92 : x
  2. Step 2: Convert to fraction form
    167.13/250.65 = 70.92/x
  3. Step 3: Cross multiply
    167.13x = 250.65 × 70.92
  4. Step 4: Simplify right side
    167.13x = 17,776.10
  5. Step 5: Solve for x
    x = 17,776.10/167.13
  6. Step 6: Final answer
    x = 106.36

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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.