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Finding the Fourth Proportional to 235.65, 352.93 and 132.73

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Solution

The fourth proportional to 235.65, 352.93 and 132.73 is: 198.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.65 : 352.93 = 132.73 : x
  2. Step 2: Convert to fraction form
    235.65/352.93 = 132.73/x
  3. Step 3: Cross multiply
    235.65x = 352.93 × 132.73
  4. Step 4: Simplify right side
    235.65x = 46,844.40
  5. Step 5: Solve for x
    x = 46,844.40/235.65
  6. Step 6: Final answer
    x = 198.79

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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.