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Finding the Fourth Proportional to 181,113.27, 271,669.89 and 68,793.21

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Solution

The fourth proportional to 181,113.27, 271,669.89 and 68,793.21 is: 103,189.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,113.27 : 271,669.89 = 68,793.21 : x
  2. Step 2: Convert to fraction form
    181,113.27/271,669.89 = 68,793.21/x
  3. Step 3: Cross multiply
    181,113.27x = 271,669.89 × 68,793.21
  4. Step 4: Simplify right side
    181,113.27x = 18,689,043,793.45
  5. Step 5: Solve for x
    x = 18,689,043,793.45/181,113.27
  6. Step 6: Final answer
    x = 103,189.81

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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.