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Finding the Fourth Proportional to 81,578.92, 122,402.94 and 44,599.72

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Solution

The fourth proportional to 81,578.92, 122,402.94 and 44,599.72 is: 66,918.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,578.92 : 122,402.94 = 44,599.72 : x
  2. Step 2: Convert to fraction form
    81,578.92/122,402.94 = 44,599.72/x
  3. Step 3: Cross multiply
    81,578.92x = 122,402.94 × 44,599.72
  4. Step 4: Simplify right side
    81,578.92x = 5,459,136,851.18
  5. Step 5: Solve for x
    x = 5,459,136,851.18/81,578.92
  6. Step 6: Final answer
    x = 66,918.47

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