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Finding the Fourth Proportional to 210,717.44, 316,076.46 and 86,058.44

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Solution

The fourth proportional to 210,717.44, 316,076.46 and 86,058.44 is: 129,087.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,717.44 : 316,076.46 = 86,058.44 : x
  2. Step 2: Convert to fraction form
    210,717.44/316,076.46 = 86,058.44/x
  3. Step 3: Cross multiply
    210,717.44x = 316,076.46 × 86,058.44
  4. Step 4: Simplify right side
    210,717.44x = 27,201,047,068.32
  5. Step 5: Solve for x
    x = 27,201,047,068.32/210,717.44
  6. Step 6: Final answer
    x = 129,087.78

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