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Finding the Fourth Proportional to 103,665.51, 155,490.97 and 40,473.76

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Solution

The fourth proportional to 103,665.51, 155,490.97 and 40,473.76 is: 60,707.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,665.51 : 155,490.97 = 40,473.76 : x
  2. Step 2: Convert to fraction form
    103,665.51/155,490.97 = 40,473.76/x
  3. Step 3: Cross multiply
    103,665.51x = 155,490.97 × 40,473.76
  4. Step 4: Simplify right side
    103,665.51x = 6,293,304,201.95
  5. Step 5: Solve for x
    x = 6,293,304,201.95/103,665.51
  6. Step 6: Final answer
    x = 60,707.79

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