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Finding the Fourth Proportional to 261,246.39, 391,935.41 and 74,257.89

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Solution

The fourth proportional to 261,246.39, 391,935.41 and 74,257.89 is: 111,405.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,246.39 : 391,935.41 = 74,257.89 : x
  2. Step 2: Convert to fraction form
    261,246.39/391,935.41 = 74,257.89/x
  3. Step 3: Cross multiply
    261,246.39x = 391,935.41 × 74,257.89
  4. Step 4: Simplify right side
    261,246.39x = 29,104,294,603.21
  5. Step 5: Solve for x
    x = 29,104,294,603.21/261,246.39
  6. Step 6: Final answer
    x = 111,405.54

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