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Finding the Fourth Proportional to 98,131.86, 135,426.12 and 55,694.34

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Solution

The fourth proportional to 98,131.86, 135,426.12 and 55,694.34 is: 76,860.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,131.86 : 135,426.12 = 55,694.34 : x
  2. Step 2: Convert to fraction form
    98,131.86/135,426.12 = 55,694.34/x
  3. Step 3: Cross multiply
    98,131.86x = 135,426.12 × 55,694.34
  4. Step 4: Simplify right side
    98,131.86x = 7,542,468,372.16
  5. Step 5: Solve for x
    x = 7,542,468,372.16/98,131.86
  6. Step 6: Final answer
    x = 76,860.55

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