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Finding the Fourth Proportional to 201,890.80, 302,836.20 and 68,726.80

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Solution

The fourth proportional to 201,890.80, 302,836.20 and 68,726.80 is: 103,090.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,890.80 : 302,836.20 = 68,726.80 : x
  2. Step 2: Convert to fraction form
    201,890.80/302,836.20 = 68,726.80/x
  3. Step 3: Cross multiply
    201,890.80x = 302,836.20 × 68,726.80
  4. Step 4: Simplify right side
    201,890.80x = 20,812,962,950.16
  5. Step 5: Solve for x
    x = 20,812,962,950.16/201,890.80
  6. Step 6: Final answer
    x = 103,090.20

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