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Finding the Fourth Proportional to 115,903.80, 173,855.70 and 71,617.05

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Solution

The fourth proportional to 115,903.80, 173,855.70 and 71,617.05 is: 107,425.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,903.80 : 173,855.70 = 71,617.05 : x
  2. Step 2: Convert to fraction form
    115,903.80/173,855.70 = 71,617.05/x
  3. Step 3: Cross multiply
    115,903.80x = 173,855.70 × 71,617.05
  4. Step 4: Simplify right side
    115,903.80x = 12,451,032,359.69
  5. Step 5: Solve for x
    x = 12,451,032,359.69/115,903.80
  6. Step 6: Final answer
    x = 107,425.58

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