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Finding the Fourth Proportional to 261,367.78, 392,055.97 and 71,826.97

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Solution

The fourth proportional to 261,367.78, 392,055.97 and 71,826.97 is: 107,741.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,367.78 : 392,055.97 = 71,826.97 : x
  2. Step 2: Convert to fraction form
    261,367.78/392,055.97 = 71,826.97/x
  3. Step 3: Cross multiply
    261,367.78x = 392,055.97 × 71,826.97
  4. Step 4: Simplify right side
    261,367.78x = 28,160,192,395.51
  5. Step 5: Solve for x
    x = 28,160,192,395.51/261,367.78
  6. Step 6: Final answer
    x = 107,741.64

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