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Finding the Fourth Proportional to 103,636.10, 155,530.95 and 68,564.10

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Solution

The fourth proportional to 103,636.10, 155,530.95 and 68,564.10 is: 102,896.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,636.10 : 155,530.95 = 68,564.10 : x
  2. Step 2: Convert to fraction form
    103,636.10/155,530.95 = 68,564.10/x
  3. Step 3: Cross multiply
    103,636.10x = 155,530.95 × 68,564.10
  4. Step 4: Simplify right side
    103,636.10x = 10,663,839,608.90
  5. Step 5: Solve for x
    x = 10,663,839,608.90/103,636.10
  6. Step 6: Final answer
    x = 102,896.96

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