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Finding the Fourth Proportional to 79,419.81, 109,630.56 and 47,582.55

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Solution

The fourth proportional to 79,419.81, 109,630.56 and 47,582.55 is: 65,682.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,419.81 : 109,630.56 = 47,582.55 : x
  2. Step 2: Convert to fraction form
    79,419.81/109,630.56 = 47,582.55/x
  3. Step 3: Cross multiply
    79,419.81x = 109,630.56 × 47,582.55
  4. Step 4: Simplify right side
    79,419.81x = 5,216,501,602.73
  5. Step 5: Solve for x
    x = 5,216,501,602.73/79,419.81
  6. Step 6: Final answer
    x = 65,682.63

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