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Finding the Fourth Proportional to 117,136.54, 161,648.19 and 63,421.60

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Solution

The fourth proportional to 117,136.54, 161,648.19 and 63,421.60 is: 87,521.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,136.54 : 161,648.19 = 63,421.60 : x
  2. Step 2: Convert to fraction form
    117,136.54/161,648.19 = 63,421.60/x
  3. Step 3: Cross multiply
    117,136.54x = 161,648.19 × 63,421.60
  4. Step 4: Simplify right side
    117,136.54x = 10,251,986,846.90
  5. Step 5: Solve for x
    x = 10,251,986,846.90/117,136.54
  6. Step 6: Final answer
    x = 87,521.68

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