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Finding the Fourth Proportional to 273,892.80, 410,806.80 and 74,200.80

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Solution

The fourth proportional to 273,892.80, 410,806.80 and 74,200.80 is: 111,292.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,892.80 : 410,806.80 = 74,200.80 : x
  2. Step 2: Convert to fraction form
    273,892.80/410,806.80 = 74,200.80/x
  3. Step 3: Cross multiply
    273,892.80x = 410,806.80 × 74,200.80
  4. Step 4: Simplify right side
    273,892.80x = 30,482,193,205.44
  5. Step 5: Solve for x
    x = 30,482,193,205.44/273,892.80
  6. Step 6: Final answer
    x = 111,292.42

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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.