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Finding the Fourth Proportional to 116.10, 174.03 and 43.92

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Solution

The fourth proportional to 116.10, 174.03 and 43.92 is: 65.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.10 : 174.03 = 43.92 : x
  2. Step 2: Convert to fraction form
    116.10/174.03 = 43.92/x
  3. Step 3: Cross multiply
    116.10x = 174.03 × 43.92
  4. Step 4: Simplify right side
    116.10x = 7,643.40
  5. Step 5: Solve for x
    x = 7,643.40/116.10
  6. Step 6: Final answer
    x = 65.83

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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.