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Finding the Fourth Proportional to 64,600.85, 96,920.10 and 39,656.90

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Solution

The fourth proportional to 64,600.85, 96,920.10 and 39,656.90 is: 59,496.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,600.85 : 96,920.10 = 39,656.90 : x
  2. Step 2: Convert to fraction form
    64,600.85/96,920.10 = 39,656.90/x
  3. Step 3: Cross multiply
    64,600.85x = 96,920.10 × 39,656.90
  4. Step 4: Simplify right side
    64,600.85x = 3,843,550,229.09
  5. Step 5: Solve for x
    x = 3,843,550,229.09/64,600.85
  6. Step 6: Final answer
    x = 59,496.90

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