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Finding the Fourth Proportional to 99,571.45, 137,407.84 and 54,249.29

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Solution

The fourth proportional to 99,571.45, 137,407.84 and 54,249.29 is: 74,863.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,571.45 : 137,407.84 = 54,249.29 : x
  2. Step 2: Convert to fraction form
    99,571.45/137,407.84 = 54,249.29/x
  3. Step 3: Cross multiply
    99,571.45x = 137,407.84 × 54,249.29
  4. Step 4: Simplify right side
    99,571.45x = 7,454,278,531.12
  5. Step 5: Solve for x
    x = 7,454,278,531.12/99,571.45
  6. Step 6: Final answer
    x = 74,863.61

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