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Finding the Fourth Proportional to 109,307.63, 150,910.14 and 71,647.49

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Solution

The fourth proportional to 109,307.63, 150,910.14 and 71,647.49 is: 98,916.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,307.63 : 150,910.14 = 71,647.49 : x
  2. Step 2: Convert to fraction form
    109,307.63/150,910.14 = 71,647.49/x
  3. Step 3: Cross multiply
    109,307.63x = 150,910.14 × 71,647.49
  4. Step 4: Simplify right side
    109,307.63x = 10,812,331,992.00
  5. Step 5: Solve for x
    x = 10,812,331,992.00/109,307.63
  6. Step 6: Final answer
    x = 98,916.54

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