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Finding the Fourth Proportional to 123,491.10, 170,417.89 and 66,902.48

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Solution

The fourth proportional to 123,491.10, 170,417.89 and 66,902.48 is: 92,325.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,491.10 : 170,417.89 = 66,902.48 : x
  2. Step 2: Convert to fraction form
    123,491.10/170,417.89 = 66,902.48/x
  3. Step 3: Cross multiply
    123,491.10x = 170,417.89 × 66,902.48
  4. Step 4: Simplify right side
    123,491.10x = 11,401,379,216.60
  5. Step 5: Solve for x
    x = 11,401,379,216.60/123,491.10
  6. Step 6: Final answer
    x = 92,325.51

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