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Finding the Fourth Proportional to 221,786.95, 332,712.53 and 69,932.48

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Solution

The fourth proportional to 221,786.95, 332,712.53 and 69,932.48 is: 104,908.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,786.95 : 332,712.53 = 69,932.48 : x
  2. Step 2: Convert to fraction form
    221,786.95/332,712.53 = 69,932.48/x
  3. Step 3: Cross multiply
    221,786.95x = 332,712.53 × 69,932.48
  4. Step 4: Simplify right side
    221,786.95x = 23,267,413,757.45
  5. Step 5: Solve for x
    x = 23,267,413,757.45/221,786.95
  6. Step 6: Final answer
    x = 104,908.85

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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.