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Finding the Fourth Proportional to 174.42, 261.77 and 93.42

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Solution

The fourth proportional to 174.42, 261.77 and 93.42 is: 140.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.42 : 261.77 = 93.42 : x
  2. Step 2: Convert to fraction form
    174.42/261.77 = 93.42/x
  3. Step 3: Cross multiply
    174.42x = 261.77 × 93.42
  4. Step 4: Simplify right side
    174.42x = 24,454.09
  5. Step 5: Solve for x
    x = 24,454.09/174.42
  6. Step 6: Final answer
    x = 140.20

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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.