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Finding the Fourth Proportional to 136,895.27, 204,843.34 and 80,762.27

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Solution

The fourth proportional to 136,895.27, 204,843.34 and 80,762.27 is: 120,848.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,895.27 : 204,843.34 = 80,762.27 : x
  2. Step 2: Convert to fraction form
    136,895.27/204,843.34 = 80,762.27/x
  3. Step 3: Cross multiply
    136,895.27x = 204,843.34 × 80,762.27
  4. Step 4: Simplify right side
    136,895.27x = 16,543,613,745.84
  5. Step 5: Solve for x
    x = 16,543,613,745.84/136,895.27
  6. Step 6: Final answer
    x = 120,848.69

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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.