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Finding the Fourth Proportional to 74,918.73, 112,394.51 and 28,171.61

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Solution

The fourth proportional to 74,918.73, 112,394.51 and 28,171.61 is: 42,263.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,918.73 : 112,394.51 = 28,171.61 : x
  2. Step 2: Convert to fraction form
    74,918.73/112,394.51 = 28,171.61/x
  3. Step 3: Cross multiply
    74,918.73x = 112,394.51 × 28,171.61
  4. Step 4: Simplify right side
    74,918.73x = 3,166,333,599.03
  5. Step 5: Solve for x
    x = 3,166,333,599.03/74,918.73
  6. Step 6: Final answer
    x = 42,263.58

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