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Finding the Fourth Proportional to 218,628.80, 327,943.20 and 179,748.80

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Solution

The fourth proportional to 218,628.80, 327,943.20 and 179,748.80 is: 269,623.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,628.80 : 327,943.20 = 179,748.80 : x
  2. Step 2: Convert to fraction form
    218,628.80/327,943.20 = 179,748.80/x
  3. Step 3: Cross multiply
    218,628.80x = 327,943.20 × 179,748.80
  4. Step 4: Simplify right side
    218,628.80x = 58,947,396,668.16
  5. Step 5: Solve for x
    x = 58,947,396,668.16/218,628.80
  6. Step 6: Final answer
    x = 269,623.20

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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.