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Finding the Fourth Proportional to 79,131.84, 109,209.36 and 47,300.06

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Solution

The fourth proportional to 79,131.84, 109,209.36 and 47,300.06 is: 65,278.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,131.84 : 109,209.36 = 47,300.06 : x
  2. Step 2: Convert to fraction form
    79,131.84/109,209.36 = 47,300.06/x
  3. Step 3: Cross multiply
    79,131.84x = 109,209.36 × 47,300.06
  4. Step 4: Simplify right side
    79,131.84x = 5,165,608,734.51
  5. Step 5: Solve for x
    x = 5,165,608,734.51/79,131.84
  6. Step 6: Final answer
    x = 65,278.51

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