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Finding the Fourth Proportional to 221,496.43, 332,277.25 and 71,686.93

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Solution

The fourth proportional to 221,496.43, 332,277.25 and 71,686.93 is: 107,540.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,496.43 : 332,277.25 = 71,686.93 : x
  2. Step 2: Convert to fraction form
    221,496.43/332,277.25 = 71,686.93/x
  3. Step 3: Cross multiply
    221,496.43x = 332,277.25 × 71,686.93
  4. Step 4: Simplify right side
    221,496.43x = 23,819,935,961.34
  5. Step 5: Solve for x
    x = 23,819,935,961.34/221,496.43
  6. Step 6: Final answer
    x = 107,540.95

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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.