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Finding the Fourth Proportional to 293.92, 440.60 and 111.17

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Solution

The fourth proportional to 293.92, 440.60 and 111.17 is: 166.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.92 : 440.60 = 111.17 : x
  2. Step 2: Convert to fraction form
    293.92/440.60 = 111.17/x
  3. Step 3: Cross multiply
    293.92x = 440.60 × 111.17
  4. Step 4: Simplify right side
    293.92x = 48,982.05
  5. Step 5: Solve for x
    x = 48,982.05/293.92
  6. Step 6: Final answer
    x = 166.65

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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.