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Finding the Fourth Proportional to 174.34, 261.19 and 116.43

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Solution

The fourth proportional to 174.34, 261.19 and 116.43 is: 174.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.34 : 261.19 = 116.43 : x
  2. Step 2: Convert to fraction form
    174.34/261.19 = 116.43/x
  3. Step 3: Cross multiply
    174.34x = 261.19 × 116.43
  4. Step 4: Simplify right side
    174.34x = 30,410.35
  5. Step 5: Solve for x
    x = 30,410.35/174.34
  6. Step 6: Final answer
    x = 174.43

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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.