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Finding the Fourth Proportional to 54,661.80, 81,992.70 and 48,538.20

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Solution

The fourth proportional to 54,661.80, 81,992.70 and 48,538.20 is: 72,807.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,661.80 : 81,992.70 = 48,538.20 : x
  2. Step 2: Convert to fraction form
    54,661.80/81,992.70 = 48,538.20/x
  3. Step 3: Cross multiply
    54,661.80x = 81,992.70 × 48,538.20
  4. Step 4: Simplify right side
    54,661.80x = 3,979,778,071.14
  5. Step 5: Solve for x
    x = 3,979,778,071.14/54,661.80
  6. Step 6: Final answer
    x = 72,807.30

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