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Finding the Fourth Proportional to 73,664.70, 110,237.85 and 67,443.90

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Solution

The fourth proportional to 73,664.70, 110,237.85 and 67,443.90 is: 100,928.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,664.70 : 110,237.85 = 67,443.90 : x
  2. Step 2: Convert to fraction form
    73,664.70/110,237.85 = 67,443.90/x
  3. Step 3: Cross multiply
    73,664.70x = 110,237.85 × 67,443.90
  4. Step 4: Simplify right side
    73,664.70x = 7,434,870,531.62
  5. Step 5: Solve for x
    x = 7,434,870,531.62/73,664.70
  6. Step 6: Final answer
    x = 100,928.54

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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.