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Finding the Fourth Proportional to 116.22, 174.27 and 61.26

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Solution

The fourth proportional to 116.22, 174.27 and 61.26 is: 91.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.22 : 174.27 = 61.26 : x
  2. Step 2: Convert to fraction form
    116.22/174.27 = 61.26/x
  3. Step 3: Cross multiply
    116.22x = 174.27 × 61.26
  4. Step 4: Simplify right side
    116.22x = 10,675.78
  5. Step 5: Solve for x
    x = 10,675.78/116.22
  6. Step 6: Final answer
    x = 91.86

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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.