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Finding the Fourth Proportional to 351,846.80, 485,593.55 and 196,806.71

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Solution

The fourth proportional to 351,846.80, 485,593.55 and 196,806.71 is: 271,618.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,846.80 : 485,593.55 = 196,806.71 : x
  2. Step 2: Convert to fraction form
    351,846.80/485,593.55 = 196,806.71/x
  3. Step 3: Cross multiply
    351,846.80x = 485,593.55 × 196,806.71
  4. Step 4: Simplify right side
    351,846.80x = 95,568,071,047.73
  5. Step 5: Solve for x
    x = 95,568,071,047.73/351,846.80
  6. Step 6: Final answer
    x = 271,618.41

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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.