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Finding the Fourth Proportional to 54,205.18, 81,261.04 and 20,948.58

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Solution

The fourth proportional to 54,205.18, 81,261.04 and 20,948.58 is: 31,404.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,205.18 : 81,261.04 = 20,948.58 : x
  2. Step 2: Convert to fraction form
    54,205.18/81,261.04 = 20,948.58/x
  3. Step 3: Cross multiply
    54,205.18x = 81,261.04 × 20,948.58
  4. Step 4: Simplify right side
    54,205.18x = 1,702,303,397.32
  5. Step 5: Solve for x
    x = 1,702,303,397.32/54,205.18
  6. Step 6: Final answer
    x = 31,404.81

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