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Finding the Fourth Proportional to 80,028.80, 110,439.52 and 44,218.56

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Solution

The fourth proportional to 80,028.80, 110,439.52 and 44,218.56 is: 61,021.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,028.80 : 110,439.52 = 44,218.56 : x
  2. Step 2: Convert to fraction form
    80,028.80/110,439.52 = 44,218.56/x
  3. Step 3: Cross multiply
    80,028.80x = 110,439.52 × 44,218.56
  4. Step 4: Simplify right side
    80,028.80x = 4,883,476,541.49
  5. Step 5: Solve for x
    x = 4,883,476,541.49/80,028.80
  6. Step 6: Final answer
    x = 61,021.49

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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.