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Finding the Fourth Proportional to 72,229.97, 108,356.49 and 22,298.33

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Solution

The fourth proportional to 72,229.97, 108,356.49 and 22,298.33 is: 33,451.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,229.97 : 108,356.49 = 22,298.33 : x
  2. Step 2: Convert to fraction form
    72,229.97/108,356.49 = 22,298.33/x
  3. Step 3: Cross multiply
    72,229.97x = 108,356.49 × 22,298.33
  4. Step 4: Simplify right side
    72,229.97x = 2,416,168,229.88
  5. Step 5: Solve for x
    x = 2,416,168,229.88/72,229.97
  6. Step 6: Final answer
    x = 33,451.05

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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.