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Finding the Fourth Proportional to 77,891.25, 107,489.94 and 44,363.73

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Solution

The fourth proportional to 77,891.25, 107,489.94 and 44,363.73 is: 61,221.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,891.25 : 107,489.94 = 44,363.73 : x
  2. Step 2: Convert to fraction form
    77,891.25/107,489.94 = 44,363.73/x
  3. Step 3: Cross multiply
    77,891.25x = 107,489.94 × 44,363.73
  4. Step 4: Simplify right side
    77,891.25x = 4,768,654,675.88
  5. Step 5: Solve for x
    x = 4,768,654,675.88/77,891.25
  6. Step 6: Final answer
    x = 61,221.96

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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.