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Finding the Fourth Proportional to 80,580.64, 111,198.12 and 44,772.88

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Solution

The fourth proportional to 80,580.64, 111,198.12 and 44,772.88 is: 61,784.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,580.64 : 111,198.12 = 44,772.88 : x
  2. Step 2: Convert to fraction form
    80,580.64/111,198.12 = 44,772.88/x
  3. Step 3: Cross multiply
    80,580.64x = 111,198.12 × 44,772.88
  4. Step 4: Simplify right side
    80,580.64x = 4,978,660,082.99
  5. Step 5: Solve for x
    x = 4,978,660,082.99/80,580.64
  6. Step 6: Final answer
    x = 61,784.82

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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.