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Finding the Fourth Proportional to 174.48, 262.86 and 132

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Solution

The fourth proportional to 174.48, 262.86 and 132 is: 198.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.48 : 262.86 = 132 : x
  2. Step 2: Convert to fraction form
    174.48/262.86 = 132/x
  3. Step 3: Cross multiply
    174.48x = 262.86 × 132
  4. Step 4: Simplify right side
    174.48x = 34,697.52
  5. Step 5: Solve for x
    x = 34,697.52/174.48
  6. Step 6: Final answer
    x = 198.86

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.