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Finding the Fourth Proportional to 269,846.30, 404,698.88 and 80,255.61

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Solution

The fourth proportional to 269,846.30, 404,698.88 and 80,255.61 is: 120,362.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,846.30 : 404,698.88 = 80,255.61 : x
  2. Step 2: Convert to fraction form
    269,846.30/404,698.88 = 80,255.61/x
  3. Step 3: Cross multiply
    269,846.30x = 404,698.88 × 80,255.61
  4. Step 4: Simplify right side
    269,846.30x = 32,479,355,681.36
  5. Step 5: Solve for x
    x = 32,479,355,681.36/269,846.30
  6. Step 6: Final answer
    x = 120,362.43

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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.