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Finding the Fourth Proportional to 78,964, 108,970.32 and 43,636

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Solution

The fourth proportional to 78,964, 108,970.32 and 43,636 is: 60,217.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,964 : 108,970.32 = 43,636 : x
  2. Step 2: Convert to fraction form
    78,964/108,970.32 = 43,636/x
  3. Step 3: Cross multiply
    78,964x = 108,970.32 × 43,636
  4. Step 4: Simplify right side
    78,964x = 4,755,028,883.52
  5. Step 5: Solve for x
    x = 4,755,028,883.52/78,964
  6. Step 6: Final answer
    x = 60,217.68

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