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Finding the Fourth Proportional to 69,891.86, 104,734.11 and 51,333.14

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Solution

The fourth proportional to 69,891.86, 104,734.11 and 51,333.14 is: 76,923.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,891.86 : 104,734.11 = 51,333.14 : x
  2. Step 2: Convert to fraction form
    69,891.86/104,734.11 = 51,333.14/x
  3. Step 3: Cross multiply
    69,891.86x = 104,734.11 × 51,333.14
  4. Step 4: Simplify right side
    69,891.86x = 5,376,331,185.74
  5. Step 5: Solve for x
    x = 5,376,331,185.74/69,891.86
  6. Step 6: Final answer
    x = 76,923.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.