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Finding the Fourth Proportional to 271,892.80, 407,896.80 and 82,337.60

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Solution

The fourth proportional to 271,892.80, 407,896.80 and 82,337.60 is: 123,523.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,892.80 : 407,896.80 = 82,337.60 : x
  2. Step 2: Convert to fraction form
    271,892.80/407,896.80 = 82,337.60/x
  3. Step 3: Cross multiply
    271,892.80x = 407,896.80 × 82,337.60
  4. Step 4: Simplify right side
    271,892.80x = 33,585,243,559.68
  5. Step 5: Solve for x
    x = 33,585,243,559.68/271,892.80
  6. Step 6: Final answer
    x = 123,523.84

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Why These Related Problems?

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