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Finding the Fourth Proportional to 275,563.94, 380,251.97 and 154,677.52

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Solution

The fourth proportional to 275,563.94, 380,251.97 and 154,677.52 is: 213,440.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,563.94 : 380,251.97 = 154,677.52 : x
  2. Step 2: Convert to fraction form
    275,563.94/380,251.97 = 154,677.52/x
  3. Step 3: Cross multiply
    275,563.94x = 380,251.97 × 154,677.52
  4. Step 4: Simplify right side
    275,563.94x = 58,816,431,694.71
  5. Step 5: Solve for x
    x = 58,816,431,694.71/275,563.94
  6. Step 6: Final answer
    x = 213,440.23

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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.