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Finding the Fourth Proportional to 311.50, 466.96 and 116.37

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Solution

The fourth proportional to 311.50, 466.96 and 116.37 is: 174.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    311.50 : 466.96 = 116.37 : x
  2. Step 2: Convert to fraction form
    311.50/466.96 = 116.37/x
  3. Step 3: Cross multiply
    311.50x = 466.96 × 116.37
  4. Step 4: Simplify right side
    311.50x = 54,340.14
  5. Step 5: Solve for x
    x = 54,340.14/311.50
  6. Step 6: Final answer
    x = 174.45

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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.