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Finding the Fourth Proportional to 273,907.50, 410,861.25 and 74,227.87

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Solution

The fourth proportional to 273,907.50, 410,861.25 and 74,227.87 is: 111,341.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,907.50 : 410,861.25 = 74,227.87 : x
  2. Step 2: Convert to fraction form
    273,907.50/410,861.25 = 74,227.87/x
  3. Step 3: Cross multiply
    273,907.50x = 410,861.25 × 74,227.87
  4. Step 4: Simplify right side
    273,907.50x = 30,497,355,081.90
  5. Step 5: Solve for x
    x = 30,497,355,081.90/273,907.50
  6. Step 6: Final answer
    x = 111,341.81

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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.