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Finding the Fourth Proportional to 221,801.52, 332,797.59 and 72,087.69

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Solution

The fourth proportional to 221,801.52, 332,797.59 and 72,087.69 is: 108,162.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,801.52 : 332,797.59 = 72,087.69 : x
  2. Step 2: Convert to fraction form
    221,801.52/332,797.59 = 72,087.69/x
  3. Step 3: Cross multiply
    221,801.52x = 332,797.59 × 72,087.69
  4. Step 4: Simplify right side
    221,801.52x = 23,990,609,500.67
  5. Step 5: Solve for x
    x = 23,990,609,500.67/221,801.52
  6. Step 6: Final answer
    x = 108,162.51

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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.