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Finding the Fourth Proportional to 48,738.60, 73,107.90 and 44,145.90

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Solution

The fourth proportional to 48,738.60, 73,107.90 and 44,145.90 is: 66,218.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,738.60 : 73,107.90 = 44,145.90 : x
  2. Step 2: Convert to fraction form
    48,738.60/73,107.90 = 44,145.90/x
  3. Step 3: Cross multiply
    48,738.60x = 73,107.90 × 44,145.90
  4. Step 4: Simplify right side
    48,738.60x = 3,227,414,042.61
  5. Step 5: Solve for x
    x = 3,227,414,042.61/48,738.60
  6. Step 6: Final answer
    x = 66,218.85

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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.