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Finding the Fourth Proportional to 82,810.51, 124,217.80 and 30,219.97

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Solution

The fourth proportional to 82,810.51, 124,217.80 and 30,219.97 is: 45,330.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,810.51 : 124,217.80 = 30,219.97 : x
  2. Step 2: Convert to fraction form
    82,810.51/124,217.80 = 30,219.97/x
  3. Step 3: Cross multiply
    82,810.51x = 124,217.80 × 30,219.97
  4. Step 4: Simplify right side
    82,810.51x = 3,753,858,189.47
  5. Step 5: Solve for x
    x = 3,753,858,189.47/82,810.51
  6. Step 6: Final answer
    x = 45,330.70

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