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Finding the Fourth Proportional to 78,058.12, 107,722.81 and 47,837.60

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Solution

The fourth proportional to 78,058.12, 107,722.81 and 47,837.60 is: 66,017.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,058.12 : 107,722.81 = 47,837.60 : x
  2. Step 2: Convert to fraction form
    78,058.12/107,722.81 = 47,837.60/x
  3. Step 3: Cross multiply
    78,058.12x = 107,722.81 × 47,837.60
  4. Step 4: Simplify right side
    78,058.12x = 5,153,200,695.66
  5. Step 5: Solve for x
    x = 5,153,200,695.66/78,058.12
  6. Step 6: Final answer
    x = 66,017.49

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