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Finding the Fourth Proportional to 99,568.10, 149,352.15 and 73,129.70

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Solution

The fourth proportional to 99,568.10, 149,352.15 and 73,129.70 is: 109,694.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,568.10 : 149,352.15 = 73,129.70 : x
  2. Step 2: Convert to fraction form
    99,568.10/149,352.15 = 73,129.70/x
  3. Step 3: Cross multiply
    99,568.10x = 149,352.15 × 73,129.70
  4. Step 4: Simplify right side
    99,568.10x = 10,922,077,923.86
  5. Step 5: Solve for x
    x = 10,922,077,923.86/99,568.10
  6. Step 6: Final answer
    x = 109,694.55

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