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Finding the Fourth Proportional to 431,182.39, 646,724.04 and 115,614.49

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Solution

The fourth proportional to 431,182.39, 646,724.04 and 115,614.49 is: 173,408.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,182.39 : 646,724.04 = 115,614.49 : x
  2. Step 2: Convert to fraction form
    431,182.39/646,724.04 = 115,614.49/x
  3. Step 3: Cross multiply
    431,182.39x = 646,724.04 × 115,614.49
  4. Step 4: Simplify right side
    431,182.39x = 74,770,670,055.34
  5. Step 5: Solve for x
    x = 74,770,670,055.34/431,182.39
  6. Step 6: Final answer
    x = 173,408.45

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