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Finding the Fourth Proportional to 99,661.07, 137,533.35 and 54,338.68

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Solution

The fourth proportional to 99,661.07, 137,533.35 and 54,338.68 is: 74,987.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,661.07 : 137,533.35 = 54,338.68 : x
  2. Step 2: Convert to fraction form
    99,661.07/137,533.35 = 54,338.68/x
  3. Step 3: Cross multiply
    99,661.07x = 137,533.35 × 54,338.68
  4. Step 4: Simplify right side
    99,661.07x = 7,473,380,694.98
  5. Step 5: Solve for x
    x = 7,473,380,694.98/99,661.07
  6. Step 6: Final answer
    x = 74,987.96

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