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Finding the Fourth Proportional to 263,167.80, 394,751.70 and 245,542.20

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Solution

The fourth proportional to 263,167.80, 394,751.70 and 245,542.20 is: 368,313.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,167.80 : 394,751.70 = 245,542.20 : x
  2. Step 2: Convert to fraction form
    263,167.80/394,751.70 = 245,542.20/x
  3. Step 3: Cross multiply
    263,167.80x = 394,751.70 × 245,542.20
  4. Step 4: Simplify right side
    263,167.80x = 96,928,200,871.74
  5. Step 5: Solve for x
    x = 96,928,200,871.74/263,167.80
  6. Step 6: Final answer
    x = 368,313.30

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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.