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Finding the Fourth Proportional to 80,378.57, 110,912.24 and 44,070.47

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Solution

The fourth proportional to 80,378.57, 110,912.24 and 44,070.47 is: 60,811.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,378.57 : 110,912.24 = 44,070.47 : x
  2. Step 2: Convert to fraction form
    80,378.57/110,912.24 = 44,070.47/x
  3. Step 3: Cross multiply
    80,378.57x = 110,912.24 × 44,070.47
  4. Step 4: Simplify right side
    80,378.57x = 4,887,953,770.64
  5. Step 5: Solve for x
    x = 4,887,953,770.64/80,378.57
  6. Step 6: Final answer
    x = 60,811.65

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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.