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Finding the Fourth Proportional to 79,438.68, 109,623.24 and 43,628.40

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Solution

The fourth proportional to 79,438.68, 109,623.24 and 43,628.40 is: 60,206.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,438.68 : 109,623.24 = 43,628.40 : x
  2. Step 2: Convert to fraction form
    79,438.68/109,623.24 = 43,628.40/x
  3. Step 3: Cross multiply
    79,438.68x = 109,623.24 × 43,628.40
  4. Step 4: Simplify right side
    79,438.68x = 4,782,686,564.02
  5. Step 5: Solve for x
    x = 4,782,686,564.02/79,438.68
  6. Step 6: Final answer
    x = 60,206.02

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