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Finding the Fourth Proportional to 82,191.33, 123,187.86 and 40,008.20

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Solution

The fourth proportional to 82,191.33, 123,187.86 and 40,008.20 is: 59,964.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,191.33 : 123,187.86 = 40,008.20 : x
  2. Step 2: Convert to fraction form
    82,191.33/123,187.86 = 40,008.20/x
  3. Step 3: Cross multiply
    82,191.33x = 123,187.86 × 40,008.20
  4. Step 4: Simplify right side
    82,191.33x = 4,928,525,076.43
  5. Step 5: Solve for x
    x = 4,928,525,076.43/82,191.33
  6. Step 6: Final answer
    x = 59,964.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.