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Finding the Fourth Proportional to 72,360.76, 108,556.73 and 22,439.85

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Solution

The fourth proportional to 72,360.76, 108,556.73 and 22,439.85 is: 33,664.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,360.76 : 108,556.73 = 22,439.85 : x
  2. Step 2: Convert to fraction form
    72,360.76/108,556.73 = 22,439.85/x
  3. Step 3: Cross multiply
    72,360.76x = 108,556.73 × 22,439.85
  4. Step 4: Simplify right side
    72,360.76x = 2,435,996,625.49
  5. Step 5: Solve for x
    x = 2,435,996,625.49/72,360.76
  6. Step 6: Final answer
    x = 33,664.61

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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.