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Finding the Fourth Proportional to 116.35, 174.44 and 61.47

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Solution

The fourth proportional to 116.35, 174.44 and 61.47 is: 92.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.35 : 174.44 = 61.47 : x
  2. Step 2: Convert to fraction form
    116.35/174.44 = 61.47/x
  3. Step 3: Cross multiply
    116.35x = 174.44 × 61.47
  4. Step 4: Simplify right side
    116.35x = 10,722.98
  5. Step 5: Solve for x
    x = 10,722.98/116.35
  6. Step 6: Final answer
    x = 92.16

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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.