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Finding the Fourth Proportional to 57,971.40, 86,957.10 and 54,054.60

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Solution

The fourth proportional to 57,971.40, 86,957.10 and 54,054.60 is: 81,081.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,971.40 : 86,957.10 = 54,054.60 : x
  2. Step 2: Convert to fraction form
    57,971.40/86,957.10 = 54,054.60/x
  3. Step 3: Cross multiply
    57,971.40x = 86,957.10 × 54,054.60
  4. Step 4: Simplify right side
    57,971.40x = 4,700,431,257.66
  5. Step 5: Solve for x
    x = 4,700,431,257.66/57,971.40
  6. Step 6: Final answer
    x = 81,081.90

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