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Finding the Fourth Proportional to 79,959.57, 119,939.75 and 33,212.49

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Solution

The fourth proportional to 79,959.57, 119,939.75 and 33,212.49 is: 49,818.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,959.57 : 119,939.75 = 33,212.49 : x
  2. Step 2: Convert to fraction form
    79,959.57/119,939.75 = 33,212.49/x
  3. Step 3: Cross multiply
    79,959.57x = 119,939.75 × 33,212.49
  4. Step 4: Simplify right side
    79,959.57x = 3,983,497,747.48
  5. Step 5: Solve for x
    x = 3,983,497,747.48/79,959.57
  6. Step 6: Final answer
    x = 49,818.90

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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.