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Finding the Fourth Proportional to 78,276.00, 117,431.01 and 25,683.51

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Solution

The fourth proportional to 78,276.00, 117,431.01 and 25,683.51 is: 38,530.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,276.00 : 117,431.01 = 25,683.51 : x
  2. Step 2: Convert to fraction form
    78,276.00/117,431.01 = 25,683.51/x
  3. Step 3: Cross multiply
    78,276.00x = 117,431.01 × 25,683.51
  4. Step 4: Simplify right side
    78,276.00x = 3,016,039,932.49
  5. Step 5: Solve for x
    x = 3,016,039,932.49/78,276.00
  6. Step 6: Final answer
    x = 38,530.84

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