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Finding the Fourth Proportional to 269,806.45, 372,335.92 and 148,947.80

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Solution

The fourth proportional to 269,806.45, 372,335.92 and 148,947.80 is: 205,549.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,806.45 : 372,335.92 = 148,947.80 : x
  2. Step 2: Convert to fraction form
    269,806.45/372,335.92 = 148,947.80/x
  3. Step 3: Cross multiply
    269,806.45x = 372,335.92 × 148,947.80
  4. Step 4: Simplify right side
    269,806.45x = 55,458,614,469.40
  5. Step 5: Solve for x
    x = 55,458,614,469.40/269,806.45
  6. Step 6: Final answer
    x = 205,549.63

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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.