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Finding the Fourth Proportional to 79,906.60, 119,859.90 and 33,146.92

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Solution

The fourth proportional to 79,906.60, 119,859.90 and 33,146.92 is: 49,720.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,906.60 : 119,859.90 = 33,146.92 : x
  2. Step 2: Convert to fraction form
    79,906.60/119,859.90 = 33,146.92/x
  3. Step 3: Cross multiply
    79,906.60x = 119,859.90 × 33,146.92
  4. Step 4: Simplify right side
    79,906.60x = 3,972,986,516.51
  5. Step 5: Solve for x
    x = 3,972,986,516.51/79,906.60
  6. Step 6: Final answer
    x = 49,720.38

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Similar ratio
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1.5x scale

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.