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Finding the Fourth Proportional to 54,805.16, 82,158.36 and 19,720.13

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Solution

The fourth proportional to 54,805.16, 82,158.36 and 19,720.13 is: 29,562.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,805.16 : 82,158.36 = 19,720.13 : x
  2. Step 2: Convert to fraction form
    54,805.16/82,158.36 = 19,720.13/x
  3. Step 3: Cross multiply
    54,805.16x = 82,158.36 × 19,720.13
  4. Step 4: Simplify right side
    54,805.16x = 1,620,173,129.00
  5. Step 5: Solve for x
    x = 1,620,173,129.00/54,805.16
  6. Step 6: Final answer
    x = 29,562.42

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