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Finding the Fourth Proportional to 72,001.60, 107,872.80 and 58,782.40

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Solution

The fourth proportional to 72,001.60, 107,872.80 and 58,782.40 is: 88,067.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,001.60 : 107,872.80 = 58,782.40 : x
  2. Step 2: Convert to fraction form
    72,001.60/107,872.80 = 58,782.40/x
  3. Step 3: Cross multiply
    72,001.60x = 107,872.80 × 58,782.40
  4. Step 4: Simplify right side
    72,001.60x = 6,341,022,078.72
  5. Step 5: Solve for x
    x = 6,341,022,078.72/72,001.60
  6. Step 6: Final answer
    x = 88,067.79

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