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Finding the Fourth Proportional to 73,960.70, 111,039.46 and 38,924.96

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Solution

The fourth proportional to 73,960.70, 111,039.46 and 38,924.96 is: 58,439.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,960.70 : 111,039.46 = 38,924.96 : x
  2. Step 2: Convert to fraction form
    73,960.70/111,039.46 = 38,924.96/x
  3. Step 3: Cross multiply
    73,960.70x = 111,039.46 × 38,924.96
  4. Step 4: Simplify right side
    73,960.70x = 4,322,205,886.41
  5. Step 5: Solve for x
    x = 4,322,205,886.41/73,960.70
  6. Step 6: Final answer
    x = 58,439.23

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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.