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Finding the Fourth Proportional to 167.19, 250.60 and 109.43

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Solution

The fourth proportional to 167.19, 250.60 and 109.43 is: 164.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.19 : 250.60 = 109.43 : x
  2. Step 2: Convert to fraction form
    167.19/250.60 = 109.43/x
  3. Step 3: Cross multiply
    167.19x = 250.60 × 109.43
  4. Step 4: Simplify right side
    167.19x = 27,423.16
  5. Step 5: Solve for x
    x = 27,423.16/167.19
  6. Step 6: Final answer
    x = 164.02

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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.