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Finding the Fourth Proportional to 293,843.89, 440,731.18 and 80,633.36

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Solution

The fourth proportional to 293,843.89, 440,731.18 and 80,633.36 is: 120,940.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,843.89 : 440,731.18 = 80,633.36 : x
  2. Step 2: Convert to fraction form
    293,843.89/440,731.18 = 80,633.36/x
  3. Step 3: Cross multiply
    293,843.89x = 440,731.18 × 80,633.36
  4. Step 4: Simplify right side
    293,843.89x = 35,537,635,900.16
  5. Step 5: Solve for x
    x = 35,537,635,900.16/293,843.89
  6. Step 6: Final answer
    x = 120,940.53

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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.