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Finding the Fourth Proportional to 80,511.91, 111,109.91 and 44,701.92

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Solution

The fourth proportional to 80,511.91, 111,109.91 and 44,701.92 is: 61,690.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,511.91 : 111,109.91 = 44,701.92 : x
  2. Step 2: Convert to fraction form
    80,511.91/111,109.91 = 44,701.92/x
  3. Step 3: Cross multiply
    80,511.91x = 111,109.91 × 44,701.92
  4. Step 4: Simplify right side
    80,511.91x = 4,966,826,084.52
  5. Step 5: Solve for x
    x = 4,966,826,084.52/80,511.91
  6. Step 6: Final answer
    x = 61,690.58

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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.