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Finding the Fourth Proportional to 99,178.82, 136,863.77 and 53,855.97

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Solution

The fourth proportional to 99,178.82, 136,863.77 and 53,855.97 is: 74,319.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,178.82 : 136,863.77 = 53,855.97 : x
  2. Step 2: Convert to fraction form
    99,178.82/136,863.77 = 53,855.97/x
  3. Step 3: Cross multiply
    99,178.82x = 136,863.77 × 53,855.97
  4. Step 4: Simplify right side
    99,178.82x = 7,370,930,821.93
  5. Step 5: Solve for x
    x = 7,370,930,821.93/99,178.82
  6. Step 6: Final answer
    x = 74,319.61

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