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Finding the Fourth Proportional to 84,768.80, 127,226.10 and 37,456.70

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Solution

The fourth proportional to 84,768.80, 127,226.10 and 37,456.70 is: 56,217.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,768.80 : 127,226.10 = 37,456.70 : x
  2. Step 2: Convert to fraction form
    84,768.80/127,226.10 = 37,456.70/x
  3. Step 3: Cross multiply
    84,768.80x = 127,226.10 × 37,456.70
  4. Step 4: Simplify right side
    84,768.80x = 4,765,469,859.87
  5. Step 5: Solve for x
    x = 4,765,469,859.87/84,768.80
  6. Step 6: Final answer
    x = 56,217.26

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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.