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Finding the Fourth Proportional to 48,857.80, 73,286.70 and 41,859.40

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Solution

The fourth proportional to 48,857.80, 73,286.70 and 41,859.40 is: 62,789.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,857.80 : 73,286.70 = 41,859.40 : x
  2. Step 2: Convert to fraction form
    48,857.80/73,286.70 = 41,859.40/x
  3. Step 3: Cross multiply
    48,857.80x = 73,286.70 × 41,859.40
  4. Step 4: Simplify right side
    48,857.80x = 3,067,737,289.98
  5. Step 5: Solve for x
    x = 3,067,737,289.98/48,857.80
  6. Step 6: Final answer
    x = 62,789.10

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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.