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Finding the Fourth Proportional to 84,512.62, 126,768.81 and 33,934.42

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Solution

The fourth proportional to 84,512.62, 126,768.81 and 33,934.42 is: 50,901.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,512.62 : 126,768.81 = 33,934.42 : x
  2. Step 2: Convert to fraction form
    84,512.62/126,768.81 = 33,934.42/x
  3. Step 3: Cross multiply
    84,512.62x = 126,768.81 × 33,934.42
  4. Step 4: Simplify right side
    84,512.62x = 4,301,826,041.44
  5. Step 5: Solve for x
    x = 4,301,826,041.44/84,512.62
  6. Step 6: Final answer
    x = 50,901.58

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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.