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Finding the Fourth Proportional to 281,891.66, 422,796.48 and 82,158.44

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Solution

The fourth proportional to 281,891.66, 422,796.48 and 82,158.44 is: 123,225.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,891.66 : 422,796.48 = 82,158.44 : x
  2. Step 2: Convert to fraction form
    281,891.66/422,796.48 = 82,158.44/x
  3. Step 3: Cross multiply
    281,891.66x = 422,796.48 × 82,158.44
  4. Step 4: Simplify right side
    281,891.66x = 34,736,299,234.29
  5. Step 5: Solve for x
    x = 34,736,299,234.29/281,891.66
  6. Step 6: Final answer
    x = 123,225.71

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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.