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Finding the Fourth Proportional to 235.86, 353.34 and 132.83

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Solution

The fourth proportional to 235.86, 353.34 and 132.83 is: 198.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.86 : 353.34 = 132.83 : x
  2. Step 2: Convert to fraction form
    235.86/353.34 = 132.83/x
  3. Step 3: Cross multiply
    235.86x = 353.34 × 132.83
  4. Step 4: Simplify right side
    235.86x = 46,934.15
  5. Step 5: Solve for x
    x = 46,934.15/235.86
  6. Step 6: Final answer
    x = 198.99

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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.