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Finding the Fourth Proportional to 174.80, 262.20 and 93.68

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Solution

The fourth proportional to 174.80, 262.20 and 93.68 is: 140.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.80 : 262.20 = 93.68 : x
  2. Step 2: Convert to fraction form
    174.80/262.20 = 93.68/x
  3. Step 3: Cross multiply
    174.80x = 262.20 × 93.68
  4. Step 4: Simplify right side
    174.80x = 24,562.90
  5. Step 5: Solve for x
    x = 24,562.90/174.80
  6. Step 6: Final answer
    x = 140.52

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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.