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Finding the Fourth Proportional to 54,169.60, 81,254.40 and 47,257.60

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Solution

The fourth proportional to 54,169.60, 81,254.40 and 47,257.60 is: 70,886.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,169.60 : 81,254.40 = 47,257.60 : x
  2. Step 2: Convert to fraction form
    54,169.60/81,254.40 = 47,257.60/x
  3. Step 3: Cross multiply
    54,169.60x = 81,254.40 × 47,257.60
  4. Step 4: Simplify right side
    54,169.60x = 3,839,887,933.44
  5. Step 5: Solve for x
    x = 3,839,887,933.44/54,169.60
  6. Step 6: Final answer
    x = 70,886.40

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