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Finding the Fourth Proportional to 80,893.52, 111,600.69 and 49,050.80

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Solution

The fourth proportional to 80,893.52, 111,600.69 and 49,050.80 is: 67,670.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,893.52 : 111,600.69 = 49,050.80 : x
  2. Step 2: Convert to fraction form
    80,893.52/111,600.69 = 49,050.80/x
  3. Step 3: Cross multiply
    80,893.52x = 111,600.69 × 49,050.80
  4. Step 4: Simplify right side
    80,893.52x = 5,474,103,125.05
  5. Step 5: Solve for x
    x = 5,474,103,125.05/80,893.52
  6. Step 6: Final answer
    x = 67,670.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.