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Finding the Fourth Proportional to 273,378.80, 410,068.20 and 223,515.20

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Solution

The fourth proportional to 273,378.80, 410,068.20 and 223,515.20 is: 335,272.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,378.80 : 410,068.20 = 223,515.20 : x
  2. Step 2: Convert to fraction form
    273,378.80/410,068.20 = 223,515.20/x
  3. Step 3: Cross multiply
    273,378.80x = 410,068.20 × 223,515.20
  4. Step 4: Simplify right side
    273,378.80x = 91,656,475,736.64
  5. Step 5: Solve for x
    x = 91,656,475,736.64/273,378.80
  6. Step 6: Final answer
    x = 335,272.80

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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.