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Finding the Fourth Proportional to 300,257.92, 449,989.44 and 159,713.92

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Solution

The fourth proportional to 300,257.92, 449,989.44 and 159,713.92 is: 239,359.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,257.92 : 449,989.44 = 159,713.92 : x
  2. Step 2: Convert to fraction form
    300,257.92/449,989.44 = 159,713.92/x
  3. Step 3: Cross multiply
    300,257.92x = 449,989.44 × 159,713.92
  4. Step 4: Simplify right side
    300,257.92x = 71,869,577,421.00
  5. Step 5: Solve for x
    x = 71,869,577,421.00/300,257.92
  6. Step 6: Final answer
    x = 239,359.47

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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.