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Finding the Fourth Proportional to 80,642.72, 111,286.02 and 44,835.86

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Solution

The fourth proportional to 80,642.72, 111,286.02 and 44,835.86 is: 61,872.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,642.72 : 111,286.02 = 44,835.86 : x
  2. Step 2: Convert to fraction form
    80,642.72/111,286.02 = 44,835.86/x
  3. Step 3: Cross multiply
    80,642.72x = 111,286.02 × 44,835.86
  4. Step 4: Simplify right side
    80,642.72x = 4,989,604,412.68
  5. Step 5: Solve for x
    x = 4,989,604,412.68/80,642.72
  6. Step 6: Final answer
    x = 61,872.97

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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.