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Finding the Fourth Proportional to 80,273.70, 110,811.24 and 48,435.84

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Solution

The fourth proportional to 80,273.70, 110,811.24 and 48,435.84 is: 66,861.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,273.70 : 110,811.24 = 48,435.84 : x
  2. Step 2: Convert to fraction form
    80,273.70/110,811.24 = 48,435.84/x
  3. Step 3: Cross multiply
    80,273.70x = 110,811.24 × 48,435.84
  4. Step 4: Simplify right side
    80,273.70x = 5,367,235,490.84
  5. Step 5: Solve for x
    x = 5,367,235,490.84/80,273.70
  6. Step 6: Final answer
    x = 66,861.69

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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.