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Finding the Fourth Proportional to 82,065.40, 123,098.10 and 26,661.40

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Solution

The fourth proportional to 82,065.40, 123,098.10 and 26,661.40 is: 39,992.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,065.40 : 123,098.10 = 26,661.40 : x
  2. Step 2: Convert to fraction form
    82,065.40/123,098.10 = 26,661.40/x
  3. Step 3: Cross multiply
    82,065.40x = 123,098.10 × 26,661.40
  4. Step 4: Simplify right side
    82,065.40x = 3,281,967,683.34
  5. Step 5: Solve for x
    x = 3,281,967,683.34/82,065.40
  6. Step 6: Final answer
    x = 39,992.10

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