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Finding the Fourth Proportional to 484,517.60, 726,517.20 and 168,984.80

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Solution

The fourth proportional to 484,517.60, 726,517.20 and 168,984.80 is: 253,386.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,517.60 : 726,517.20 = 168,984.80 : x
  2. Step 2: Convert to fraction form
    484,517.60/726,517.20 = 168,984.80/x
  3. Step 3: Cross multiply
    484,517.60x = 726,517.20 × 168,984.80
  4. Step 4: Simplify right side
    484,517.60x = 122,770,363,738.56
  5. Step 5: Solve for x
    x = 122,770,363,738.56/484,517.60
  6. Step 6: Final answer
    x = 253,386.80

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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.