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Finding the Fourth Proportional to 55,424.52, 83,136.21 and 13,871.52

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Solution

The fourth proportional to 55,424.52, 83,136.21 and 13,871.52 is: 20,807.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,424.52 : 83,136.21 = 13,871.52 : x
  2. Step 2: Convert to fraction form
    55,424.52/83,136.21 = 13,871.52/x
  3. Step 3: Cross multiply
    55,424.52x = 83,136.21 × 13,871.52
  4. Step 4: Simplify right side
    55,424.52x = 1,153,225,599.74
  5. Step 5: Solve for x
    x = 1,153,225,599.74/55,424.52
  6. Step 6: Final answer
    x = 20,807.14

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