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Finding the Fourth Proportional to 80,322.10, 110,845.15 and 44,512.70

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Solution

The fourth proportional to 80,322.10, 110,845.15 and 44,512.70 is: 61,427.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,322.10 : 110,845.15 = 44,512.70 : x
  2. Step 2: Convert to fraction form
    80,322.10/110,845.15 = 44,512.70/x
  3. Step 3: Cross multiply
    80,322.10x = 110,845.15 × 44,512.70
  4. Step 4: Simplify right side
    80,322.10x = 4,934,016,908.41
  5. Step 5: Solve for x
    x = 4,934,016,908.41/80,322.10
  6. Step 6: Final answer
    x = 61,427.89

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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.