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Finding the Fourth Proportional to 116.36, 174.43 and 44.21

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Solution

The fourth proportional to 116.36, 174.43 and 44.21 is: 66.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.36 : 174.43 = 44.21 : x
  2. Step 2: Convert to fraction form
    116.36/174.43 = 44.21/x
  3. Step 3: Cross multiply
    116.36x = 174.43 × 44.21
  4. Step 4: Simplify right side
    116.36x = 7,711.55
  5. Step 5: Solve for x
    x = 7,711.55/116.36
  6. Step 6: Final answer
    x = 66.27

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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.