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Finding the Fourth Proportional to 352.96, 529.35 and 157.85

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Solution

The fourth proportional to 352.96, 529.35 and 157.85 is: 236.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.96 : 529.35 = 157.85 : x
  2. Step 2: Convert to fraction form
    352.96/529.35 = 157.85/x
  3. Step 3: Cross multiply
    352.96x = 529.35 × 157.85
  4. Step 4: Simplify right side
    352.96x = 83,555.78
  5. Step 5: Solve for x
    x = 83,555.78/352.96
  6. Step 6: Final answer
    x = 236.73

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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.