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Finding the Fourth Proportional to 116.28, 174.44 and 44.15

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Solution

The fourth proportional to 116.28, 174.44 and 44.15 is: 66.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.28 : 174.44 = 44.15 : x
  2. Step 2: Convert to fraction form
    116.28/174.44 = 44.15/x
  3. Step 3: Cross multiply
    116.28x = 174.44 × 44.15
  4. Step 4: Simplify right side
    116.28x = 7,700.76
  5. Step 5: Solve for x
    x = 7,700.76/116.28
  6. Step 6: Final answer
    x = 66.23

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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.