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Finding the Fourth Proportional to 79,085.49, 109,137.86 and 43,275.49

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Solution

The fourth proportional to 79,085.49, 109,137.86 and 43,275.49 is: 59,720.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,085.49 : 109,137.86 = 43,275.49 : x
  2. Step 2: Convert to fraction form
    79,085.49/109,137.86 = 43,275.49/x
  3. Step 3: Cross multiply
    79,085.49x = 109,137.86 × 43,275.49
  4. Step 4: Simplify right side
    79,085.49x = 4,722,994,369.05
  5. Step 5: Solve for x
    x = 4,722,994,369.05/79,085.49
  6. Step 6: Final answer
    x = 59,720.11

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