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Finding the Fourth Proportional to 116.92, 175.34 and 48.42

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Solution

The fourth proportional to 116.92, 175.34 and 48.42 is: 72.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.92 : 175.34 = 48.42 : x
  2. Step 2: Convert to fraction form
    116.92/175.34 = 48.42/x
  3. Step 3: Cross multiply
    116.92x = 175.34 × 48.42
  4. Step 4: Simplify right side
    116.92x = 8,489.96
  5. Step 5: Solve for x
    x = 8,489.96/116.92
  6. Step 6: Final answer
    x = 72.61

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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.