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Finding the Fourth Proportional to 235.96, 353.46 and 107.32

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Solution

The fourth proportional to 235.96, 353.46 and 107.32 is: 160.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.96 : 353.46 = 107.32 : x
  2. Step 2: Convert to fraction form
    235.96/353.46 = 107.32/x
  3. Step 3: Cross multiply
    235.96x = 353.46 × 107.32
  4. Step 4: Simplify right side
    235.96x = 37,933.33
  5. Step 5: Solve for x
    x = 37,933.33/235.96
  6. Step 6: Final answer
    x = 160.76

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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.