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Finding the Fourth Proportional to 188,990.52, 260,797.32 and 104,105.76

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Solution

The fourth proportional to 188,990.52, 260,797.32 and 104,105.76 is: 143,660.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,990.52 : 260,797.32 = 104,105.76 : x
  2. Step 2: Convert to fraction form
    188,990.52/260,797.32 = 104,105.76/x
  3. Step 3: Cross multiply
    188,990.52x = 260,797.32 × 104,105.76
  4. Step 4: Simplify right side
    188,990.52x = 27,150,503,204.56
  5. Step 5: Solve for x
    x = 27,150,503,204.56/188,990.52
  6. Step 6: Final answer
    x = 143,660.66

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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.