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Finding the Fourth Proportional to 80,205.90, 110,685.12 and 44,399.22

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Solution

The fourth proportional to 80,205.90, 110,685.12 and 44,399.22 is: 61,271.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,205.90 : 110,685.12 = 44,399.22 : x
  2. Step 2: Convert to fraction form
    80,205.90/110,685.12 = 44,399.22/x
  3. Step 3: Cross multiply
    80,205.90x = 110,685.12 × 44,399.22
  4. Step 4: Simplify right side
    80,205.90x = 4,914,332,993.61
  5. Step 5: Solve for x
    x = 4,914,332,993.61/80,205.90
  6. Step 6: Final answer
    x = 61,271.46

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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.