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Finding the Fourth Proportional to 235.44, 352.96 and 113.56

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Solution

The fourth proportional to 235.44, 352.96 and 113.56 is: 170.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.44 : 352.96 = 113.56 : x
  2. Step 2: Convert to fraction form
    235.44/352.96 = 113.56/x
  3. Step 3: Cross multiply
    235.44x = 352.96 × 113.56
  4. Step 4: Simplify right side
    235.44x = 40,082.14
  5. Step 5: Solve for x
    x = 40,082.14/235.44
  6. Step 6: Final answer
    x = 170.24

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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.