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Finding the Fourth Proportional to 276,040.80, 413,024.40 and 251,157.60

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Solution

The fourth proportional to 276,040.80, 413,024.40 and 251,157.60 is: 375,793.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,040.80 : 413,024.40 = 251,157.60 : x
  2. Step 2: Convert to fraction form
    276,040.80/413,024.40 = 251,157.60/x
  3. Step 3: Cross multiply
    276,040.80x = 413,024.40 × 251,157.60
  4. Step 4: Simplify right side
    276,040.80x = 103,734,217,045.44
  5. Step 5: Solve for x
    x = 103,734,217,045.44/276,040.80
  6. Step 6: Final answer
    x = 375,793.06

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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.