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Finding the Fourth Proportional to 64,321.20, 96,493.20 and 22,197.96

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Solution

The fourth proportional to 64,321.20, 96,493.20 and 22,197.96 is: 33,300.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,321.20 : 96,493.20 = 22,197.96 : x
  2. Step 2: Convert to fraction form
    64,321.20/96,493.20 = 22,197.96/x
  3. Step 3: Cross multiply
    64,321.20x = 96,493.20 × 22,197.96
  4. Step 4: Simplify right side
    64,321.20x = 2,141,952,193.87
  5. Step 5: Solve for x
    x = 2,141,952,193.87/64,321.20
  6. Step 6: Final answer
    x = 33,300.87

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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.