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Finding the Fourth Proportional to 80,785.47, 111,481.77 and 44,975.49

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Solution

The fourth proportional to 80,785.47, 111,481.77 and 44,975.49 is: 62,064.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,785.47 : 111,481.77 = 44,975.49 : x
  2. Step 2: Convert to fraction form
    80,785.47/111,481.77 = 44,975.49/x
  3. Step 3: Cross multiply
    80,785.47x = 111,481.77 × 44,975.49
  4. Step 4: Simplify right side
    80,785.47x = 5,013,947,231.82
  5. Step 5: Solve for x
    x = 5,013,947,231.82/80,785.47
  6. Step 6: Final answer
    x = 62,064.96

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1.5x scale

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.