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Finding the Fourth Proportional to 76,734.90, 105,910.50 and 51,569.82

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Solution

The fourth proportional to 76,734.90, 105,910.50 and 51,569.82 is: 71,177.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,734.90 : 105,910.50 = 51,569.82 : x
  2. Step 2: Convert to fraction form
    76,734.90/105,910.50 = 51,569.82/x
  3. Step 3: Cross multiply
    76,734.90x = 105,910.50 × 51,569.82
  4. Step 4: Simplify right side
    76,734.90x = 5,461,785,421.11
  5. Step 5: Solve for x
    x = 5,461,785,421.11/76,734.90
  6. Step 6: Final answer
    x = 71,177.33

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