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Finding the Fourth Proportional to 202,819.76, 304,236.61 and 69,698.87

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Solution

The fourth proportional to 202,819.76, 304,236.61 and 69,698.87 is: 104,550.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,819.76 : 304,236.61 = 69,698.87 : x
  2. Step 2: Convert to fraction form
    202,819.76/304,236.61 = 69,698.87/x
  3. Step 3: Cross multiply
    202,819.76x = 304,236.61 × 69,698.87
  4. Step 4: Simplify right side
    202,819.76x = 21,204,946,234.20
  5. Step 5: Solve for x
    x = 21,204,946,234.20/202,819.76
  6. Step 6: Final answer
    x = 104,550.69

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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.