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Finding the Fourth Proportional to 352,124, 485,956.23 and 199,163.60

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Solution

The fourth proportional to 352,124, 485,956.23 and 199,163.60 is: 274,859.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,124 : 485,956.23 = 199,163.60 : x
  2. Step 2: Convert to fraction form
    352,124/485,956.23 = 199,163.60/x
  3. Step 3: Cross multiply
    352,124x = 485,956.23 × 199,163.60
  4. Step 4: Simplify right side
    352,124x = 96,784,792,209.23
  5. Step 5: Solve for x
    x = 96,784,792,209.23/352,124
  6. Step 6: Final answer
    x = 274,859.97

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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.