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Finding the Fourth Proportional to 327,384.48, 490,879.20 and 124,993.80

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Solution

The fourth proportional to 327,384.48, 490,879.20 and 124,993.80 is: 187,415.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,384.48 : 490,879.20 = 124,993.80 : x
  2. Step 2: Convert to fraction form
    327,384.48/490,879.20 = 124,993.80/x
  3. Step 3: Cross multiply
    327,384.48x = 490,879.20 × 124,993.80
  4. Step 4: Simplify right side
    327,384.48x = 61,356,856,548.96
  5. Step 5: Solve for x
    x = 61,356,856,548.96/327,384.48
  6. Step 6: Final answer
    x = 187,415.29

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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.