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Finding the Fourth Proportional to 197,891.82, 273,103.92 and 111,820.86

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Solution

The fourth proportional to 197,891.82, 273,103.92 and 111,820.86 is: 154,320.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,891.82 : 273,103.92 = 111,820.86 : x
  2. Step 2: Convert to fraction form
    197,891.82/273,103.92 = 111,820.86/x
  3. Step 3: Cross multiply
    197,891.82x = 273,103.92 × 111,820.86
  4. Step 4: Simplify right side
    197,891.82x = 30,538,715,203.77
  5. Step 5: Solve for x
    x = 30,538,715,203.77/197,891.82
  6. Step 6: Final answer
    x = 154,320.25

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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.