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Finding the Fourth Proportional to 80,653.32, 111,305.28 and 44,847

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Solution

The fourth proportional to 80,653.32, 111,305.28 and 44,847 is: 61,890.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,653.32 : 111,305.28 = 44,847 : x
  2. Step 2: Convert to fraction form
    80,653.32/111,305.28 = 44,847/x
  3. Step 3: Cross multiply
    80,653.32x = 111,305.28 × 44,847
  4. Step 4: Simplify right side
    80,653.32x = 4,991,707,892.16
  5. Step 5: Solve for x
    x = 4,991,707,892.16/80,653.32
  6. Step 6: Final answer
    x = 61,890.92

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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.