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Finding the Fourth Proportional to 484,493.60, 726,481.20 and 168,960.80

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Solution

The fourth proportional to 484,493.60, 726,481.20 and 168,960.80 is: 253,350.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,493.60 : 726,481.20 = 168,960.80 : x
  2. Step 2: Convert to fraction form
    484,493.60/726,481.20 = 168,960.80/x
  3. Step 3: Cross multiply
    484,493.60x = 726,481.20 × 168,960.80
  4. Step 4: Simplify right side
    484,493.60x = 122,746,844,736.96
  5. Step 5: Solve for x
    x = 122,746,844,736.96/484,493.60
  6. Step 6: Final answer
    x = 253,350.81

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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.