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Finding the Fourth Proportional to 74,465.10, 111,696.75 and 21,872.70

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Solution

The fourth proportional to 74,465.10, 111,696.75 and 21,872.70 is: 32,808.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,465.10 : 111,696.75 = 21,872.70 : x
  2. Step 2: Convert to fraction form
    74,465.10/111,696.75 = 21,872.70/x
  3. Step 3: Cross multiply
    74,465.10x = 111,696.75 × 21,872.70
  4. Step 4: Simplify right side
    74,465.10x = 2,443,109,503.73
  5. Step 5: Solve for x
    x = 2,443,109,503.73/74,465.10
  6. Step 6: Final answer
    x = 32,808.79

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