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Finding the Fourth Proportional to 78,047.12, 117,058.76 and 25,456.52

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Solution

The fourth proportional to 78,047.12, 117,058.76 and 25,456.52 is: 38,180.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,047.12 : 117,058.76 = 25,456.52 : x
  2. Step 2: Convert to fraction form
    78,047.12/117,058.76 = 25,456.52/x
  3. Step 3: Cross multiply
    78,047.12x = 117,058.76 × 25,456.52
  4. Step 4: Simplify right side
    78,047.12x = 2,979,908,665.12
  5. Step 5: Solve for x
    x = 2,979,908,665.12/78,047.12
  6. Step 6: Final answer
    x = 38,180.89

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