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Finding the Fourth Proportional to 235.53, 352.85 and 157.48

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Solution

The fourth proportional to 235.53, 352.85 and 157.48 is: 235.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.53 : 352.85 = 157.48 : x
  2. Step 2: Convert to fraction form
    235.53/352.85 = 157.48/x
  3. Step 3: Cross multiply
    235.53x = 352.85 × 157.48
  4. Step 4: Simplify right side
    235.53x = 55,565.15
  5. Step 5: Solve for x
    x = 55,565.15/235.53
  6. Step 6: Final answer
    x = 235.92

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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.