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Finding the Fourth Proportional to 215,793.15, 323,689.73 and 215,793.15

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Solution

The fourth proportional to 215,793.15, 323,689.73 and 215,793.15 is: 323,689.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,793.15 : 323,689.73 = 215,793.15 : x
  2. Step 2: Convert to fraction form
    215,793.15/323,689.73 = 215,793.15/x
  3. Step 3: Cross multiply
    215,793.15x = 323,689.73 × 215,793.15
  4. Step 4: Simplify right side
    215,793.15x = 69,850,025,380.38
  5. Step 5: Solve for x
    x = 69,850,025,380.38/215,793.15
  6. Step 6: Final answer
    x = 323,689.73

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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.