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Finding the Fourth Proportional to 79,009.92, 118,517.16 and 34,613.76

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Solution

The fourth proportional to 79,009.92, 118,517.16 and 34,613.76 is: 51,921.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,009.92 : 118,517.16 = 34,613.76 : x
  2. Step 2: Convert to fraction form
    79,009.92/118,517.16 = 34,613.76/x
  3. Step 3: Cross multiply
    79,009.92x = 118,517.16 × 34,613.76
  4. Step 4: Simplify right side
    79,009.92x = 4,102,324,532.12
  5. Step 5: Solve for x
    x = 4,102,324,532.12/79,009.92
  6. Step 6: Final answer
    x = 51,921.64

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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.