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Finding the Fourth Proportional to 73,139.59, 100,932.05 and 39,605.59

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Solution

The fourth proportional to 73,139.59, 100,932.05 and 39,605.59 is: 54,655.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,139.59 : 100,932.05 = 39,605.59 : x
  2. Step 2: Convert to fraction form
    73,139.59/100,932.05 = 39,605.59/x
  3. Step 3: Cross multiply
    73,139.59x = 100,932.05 × 39,605.59
  4. Step 4: Simplify right side
    73,139.59x = 3,997,473,236.84
  5. Step 5: Solve for x
    x = 3,997,473,236.84/73,139.59
  6. Step 6: Final answer
    x = 54,655.40

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