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Finding the Fourth Proportional to 235.62, 353.46 and 132.84

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Solution

The fourth proportional to 235.62, 353.46 and 132.84 is: 199.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.62 : 353.46 = 132.84 : x
  2. Step 2: Convert to fraction form
    235.62/353.46 = 132.84/x
  3. Step 3: Cross multiply
    235.62x = 353.46 × 132.84
  4. Step 4: Simplify right side
    235.62x = 46,953.63
  5. Step 5: Solve for x
    x = 46,953.63/235.62
  6. Step 6: Final answer
    x = 199.28

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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.