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Finding the Fourth Proportional to 80,218.91, 110,703.41 and 43,919.75

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Solution

The fourth proportional to 80,218.91, 110,703.41 and 43,919.75 is: 60,609.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,218.91 : 110,703.41 = 43,919.75 : x
  2. Step 2: Convert to fraction form
    80,218.91/110,703.41 = 43,919.75/x
  3. Step 3: Cross multiply
    80,218.91x = 110,703.41 × 43,919.75
  4. Step 4: Simplify right side
    80,218.91x = 4,862,066,091.35
  5. Step 5: Solve for x
    x = 4,862,066,091.35/80,218.91
  6. Step 6: Final answer
    x = 60,609.97

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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.