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Finding the Fourth Proportional to 83,328.80, 124,628.70 and 74,507.90

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Solution

The fourth proportional to 83,328.80, 124,628.70 and 74,507.90 is: 111,435.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,328.80 : 124,628.70 = 74,507.90 : x
  2. Step 2: Convert to fraction form
    83,328.80/124,628.70 = 74,507.90/x
  3. Step 3: Cross multiply
    83,328.80x = 124,628.70 × 74,507.90
  4. Step 4: Simplify right side
    83,328.80x = 9,285,822,716.73
  5. Step 5: Solve for x
    x = 9,285,822,716.73/83,328.80
  6. Step 6: Final answer
    x = 111,435.93

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