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Finding the Fourth Proportional to 89,491.20, 123,495.21 and 51,249.48

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Solution

The fourth proportional to 89,491.20, 123,495.21 and 51,249.48 is: 70,722.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,491.20 : 123,495.21 = 51,249.48 : x
  2. Step 2: Convert to fraction form
    89,491.20/123,495.21 = 51,249.48/x
  3. Step 3: Cross multiply
    89,491.20x = 123,495.21 × 51,249.48
  4. Step 4: Simplify right side
    89,491.20x = 6,329,065,294.99
  5. Step 5: Solve for x
    x = 6,329,065,294.99/89,491.20
  6. Step 6: Final answer
    x = 70,722.77

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