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Finding the Fourth Proportional to 105,042.92, 144,961.19 and 57,297.98

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Solution

The fourth proportional to 105,042.92, 144,961.19 and 57,297.98 is: 79,072.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,042.92 : 144,961.19 = 57,297.98 : x
  2. Step 2: Convert to fraction form
    105,042.92/144,961.19 = 57,297.98/x
  3. Step 3: Cross multiply
    105,042.92x = 144,961.19 × 57,297.98
  4. Step 4: Simplify right side
    105,042.92x = 8,305,983,365.40
  5. Step 5: Solve for x
    x = 8,305,983,365.40/105,042.92
  6. Step 6: Final answer
    x = 79,072.28

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