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Finding the Fourth Proportional to 226.24, 311.70 and 169.98

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Solution

The fourth proportional to 226.24, 311.70 and 169.98 is: 234.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.24 : 311.70 = 169.98 : x
  2. Step 2: Convert to fraction form
    226.24/311.70 = 169.98/x
  3. Step 3: Cross multiply
    226.24x = 311.70 × 169.98
  4. Step 4: Simplify right side
    226.24x = 52,982.77
  5. Step 5: Solve for x
    x = 52,982.77/226.24
  6. Step 6: Final answer
    x = 234.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.