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Finding the Fourth Proportional to 246,469.20, 369,703.80 and 80,257.20

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Solution

The fourth proportional to 246,469.20, 369,703.80 and 80,257.20 is: 120,385.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,469.20 : 369,703.80 = 80,257.20 : x
  2. Step 2: Convert to fraction form
    246,469.20/369,703.80 = 80,257.20/x
  3. Step 3: Cross multiply
    246,469.20x = 369,703.80 × 80,257.20
  4. Step 4: Simplify right side
    246,469.20x = 29,671,391,817.36
  5. Step 5: Solve for x
    x = 29,671,391,817.36/246,469.20
  6. Step 6: Final answer
    x = 120,385.80

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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.