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Finding the Fourth Proportional to 251,149.20, 376,723.80 and 238,027.20

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Solution

The fourth proportional to 251,149.20, 376,723.80 and 238,027.20 is: 357,040.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,149.20 : 376,723.80 = 238,027.20 : x
  2. Step 2: Convert to fraction form
    251,149.20/376,723.80 = 238,027.20/x
  3. Step 3: Cross multiply
    251,149.20x = 376,723.80 × 238,027.20
  4. Step 4: Simplify right side
    251,149.20x = 89,670,511,287.36
  5. Step 5: Solve for x
    x = 89,670,511,287.36/251,149.20
  6. Step 6: Final answer
    x = 357,040.80

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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.