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Finding the Fourth Proportional to 309,718.04, 464,571.59 and 85,077.59

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Solution

The fourth proportional to 309,718.04, 464,571.59 and 85,077.59 is: 127,614.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,718.04 : 464,571.59 = 85,077.59 : x
  2. Step 2: Convert to fraction form
    309,718.04/464,571.59 = 85,077.59/x
  3. Step 3: Cross multiply
    309,718.04x = 464,571.59 × 85,077.59
  4. Step 4: Simplify right side
    309,718.04x = 39,524,628,511.42
  5. Step 5: Solve for x
    x = 39,524,628,511.42/309,718.04
  6. Step 6: Final answer
    x = 127,614.88

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