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Finding the Fourth Proportional to 231.82, 347.60 and 116.24

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Solution

The fourth proportional to 231.82, 347.60 and 116.24 is: 174.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    231.82 : 347.60 = 116.24 : x
  2. Step 2: Convert to fraction form
    231.82/347.60 = 116.24/x
  3. Step 3: Cross multiply
    231.82x = 347.60 × 116.24
  4. Step 4: Simplify right side
    231.82x = 40,403.58
  5. Step 5: Solve for x
    x = 40,403.58/231.82
  6. Step 6: Final answer
    x = 174.29

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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.