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Finding the Fourth Proportional to 248,799.80, 373,105.13 and 80,294.87

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Solution

The fourth proportional to 248,799.80, 373,105.13 and 80,294.87 is: 120,411.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,799.80 : 373,105.13 = 80,294.87 : x
  2. Step 2: Convert to fraction form
    248,799.80/373,105.13 = 80,294.87/x
  3. Step 3: Cross multiply
    248,799.80x = 373,105.13 × 80,294.87
  4. Step 4: Simplify right side
    248,799.80x = 29,958,427,041.83
  5. Step 5: Solve for x
    x = 29,958,427,041.83/248,799.80
  6. Step 6: Final answer
    x = 120,411.78

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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.