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Finding the Fourth Proportional to 86,839, 119,837.82 and 49,112.44

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Solution

The fourth proportional to 86,839, 119,837.82 and 49,112.44 is: 67,775.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,839 : 119,837.82 = 49,112.44 : x
  2. Step 2: Convert to fraction form
    86,839/119,837.82 = 49,112.44/x
  3. Step 3: Cross multiply
    86,839x = 119,837.82 × 49,112.44
  4. Step 4: Simplify right side
    86,839x = 5,885,527,744.48
  5. Step 5: Solve for x
    x = 5,885,527,744.48/86,839
  6. Step 6: Final answer
    x = 67,775.17

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.