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Finding the Fourth Proportional to 250,940.64, 376,331.64 and 82,433.28

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Solution

The fourth proportional to 250,940.64, 376,331.64 and 82,433.28 is: 123,623.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,940.64 : 376,331.64 = 82,433.28 : x
  2. Step 2: Convert to fraction form
    250,940.64/376,331.64 = 82,433.28/x
  3. Step 3: Cross multiply
    250,940.64x = 376,331.64 × 82,433.28
  4. Step 4: Simplify right side
    250,940.64x = 31,022,251,452.98
  5. Step 5: Solve for x
    x = 31,022,251,452.98/250,940.64
  6. Step 6: Final answer
    x = 123,623.86

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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.