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Finding the Fourth Proportional to 80,563.01, 120,729.94 and 59,336.12

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Solution

The fourth proportional to 80,563.01, 120,729.94 and 59,336.12 is: 88,919.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,563.01 : 120,729.94 = 59,336.12 : x
  2. Step 2: Convert to fraction form
    80,563.01/120,729.94 = 59,336.12/x
  3. Step 3: Cross multiply
    80,563.01x = 120,729.94 × 59,336.12
  4. Step 4: Simplify right side
    80,563.01x = 7,163,646,360.92
  5. Step 5: Solve for x
    x = 7,163,646,360.92/80,563.01
  6. Step 6: Final answer
    x = 88,919.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.