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Finding the Fourth Proportional to 71,579.64, 98,788.98 and 43,285.50

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Solution

The fourth proportional to 71,579.64, 98,788.98 and 43,285.50 is: 59,739.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,579.64 : 98,788.98 = 43,285.50 : x
  2. Step 2: Convert to fraction form
    71,579.64/98,788.98 = 43,285.50/x
  3. Step 3: Cross multiply
    71,579.64x = 98,788.98 × 43,285.50
  4. Step 4: Simplify right side
    71,579.64x = 4,276,130,393.79
  5. Step 5: Solve for x
    x = 4,276,130,393.79/71,579.64
  6. Step 6: Final answer
    x = 59,739.48

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