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Finding the Fourth Proportional to 174.08, 260.69 and 92.75

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Solution

The fourth proportional to 174.08, 260.69 and 92.75 is: 138.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.08 : 260.69 = 92.75 : x
  2. Step 2: Convert to fraction form
    174.08/260.69 = 92.75/x
  3. Step 3: Cross multiply
    174.08x = 260.69 × 92.75
  4. Step 4: Simplify right side
    174.08x = 24,177.23
  5. Step 5: Solve for x
    x = 24,177.23/174.08
  6. Step 6: Final answer
    x = 138.88

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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.