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Finding the Fourth Proportional to 325,843.98, 449,664.75 and 198,519.54

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Solution

The fourth proportional to 325,843.98, 449,664.75 and 198,519.54 is: 273,957.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,843.98 : 449,664.75 = 198,519.54 : x
  2. Step 2: Convert to fraction form
    325,843.98/449,664.75 = 198,519.54/x
  3. Step 3: Cross multiply
    325,843.98x = 449,664.75 × 198,519.54
  4. Step 4: Simplify right side
    325,843.98x = 89,267,239,324.22
  5. Step 5: Solve for x
    x = 89,267,239,324.22/325,843.98
  6. Step 6: Final answer
    x = 273,957.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.