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Finding the Fourth Proportional to 222.16, 333.24 and 113.98

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Solution

The fourth proportional to 222.16, 333.24 and 113.98 is: 170.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.16 : 333.24 = 113.98 : x
  2. Step 2: Convert to fraction form
    222.16/333.24 = 113.98/x
  3. Step 3: Cross multiply
    222.16x = 333.24 × 113.98
  4. Step 4: Simplify right side
    222.16x = 37,982.70
  5. Step 5: Solve for x
    x = 37,982.70/222.16
  6. Step 6: Final answer
    x = 170.97

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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.