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Finding the Fourth Proportional to 259,519.92, 389,158.92 and 134,827.44

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Solution

The fourth proportional to 259,519.92, 389,158.92 and 134,827.44 is: 202,178.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,519.92 : 389,158.92 = 134,827.44 : x
  2. Step 2: Convert to fraction form
    259,519.92/389,158.92 = 134,827.44/x
  3. Step 3: Cross multiply
    259,519.92x = 389,158.92 × 134,827.44
  4. Step 4: Simplify right side
    259,519.92x = 52,469,300,936.76
  5. Step 5: Solve for x
    x = 52,469,300,936.76/259,519.92
  6. Step 6: Final answer
    x = 202,178.32

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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.