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Finding the Fourth Proportional to 174.90, 262.43 and 113.97

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Solution

The fourth proportional to 174.90, 262.43 and 113.97 is: 171.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.90 : 262.43 = 113.97 : x
  2. Step 2: Convert to fraction form
    174.90/262.43 = 113.97/x
  3. Step 3: Cross multiply
    174.90x = 262.43 × 113.97
  4. Step 4: Simplify right side
    174.90x = 29,909.15
  5. Step 5: Solve for x
    x = 29,909.15/174.90
  6. Step 6: Final answer
    x = 171.01

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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.