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Finding the Fourth Proportional to 80,378.37, 110,928.42 and 44,575.38

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Solution

The fourth proportional to 80,378.37, 110,928.42 and 44,575.38 is: 61,517.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,378.37 : 110,928.42 = 44,575.38 : x
  2. Step 2: Convert to fraction form
    80,378.37/110,928.42 = 44,575.38/x
  3. Step 3: Cross multiply
    80,378.37x = 110,928.42 × 44,575.38
  4. Step 4: Simplify right side
    80,378.37x = 4,944,676,474.30
  5. Step 5: Solve for x
    x = 4,944,676,474.30/80,378.37
  6. Step 6: Final answer
    x = 61,517.50

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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.