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Finding the Fourth Proportional to 78,428.12, 117,661.98 and 23,024.12

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Solution

The fourth proportional to 78,428.12, 117,661.98 and 23,024.12 is: 34,541.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,428.12 : 117,661.98 = 23,024.12 : x
  2. Step 2: Convert to fraction form
    78,428.12/117,661.98 = 23,024.12/x
  3. Step 3: Cross multiply
    78,428.12x = 117,661.98 × 23,024.12
  4. Step 4: Simplify right side
    78,428.12x = 2,709,063,546.96
  5. Step 5: Solve for x
    x = 2,709,063,546.96/78,428.12
  6. Step 6: Final answer
    x = 34,541.99

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