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Finding the Fourth Proportional to 235.96, 353.34 and 158.84

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Solution

The fourth proportional to 235.96, 353.34 and 158.84 is: 237.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.96 : 353.34 = 158.84 : x
  2. Step 2: Convert to fraction form
    235.96/353.34 = 158.84/x
  3. Step 3: Cross multiply
    235.96x = 353.34 × 158.84
  4. Step 4: Simplify right side
    235.96x = 56,124.53
  5. Step 5: Solve for x
    x = 56,124.53/235.96
  6. Step 6: Final answer
    x = 237.86

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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.