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Finding the Fourth Proportional to 98,491.68, 135,884.79 and 56,039.58

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Solution

The fourth proportional to 98,491.68, 135,884.79 and 56,039.58 is: 77,315.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,491.68 : 135,884.79 = 56,039.58 : x
  2. Step 2: Convert to fraction form
    98,491.68/135,884.79 = 56,039.58/x
  3. Step 3: Cross multiply
    98,491.68x = 135,884.79 × 56,039.58
  4. Step 4: Simplify right side
    98,491.68x = 7,614,926,559.99
  5. Step 5: Solve for x
    x = 7,614,926,559.99/98,491.68
  6. Step 6: Final answer
    x = 77,315.43

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