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Finding the Fourth Proportional to 333,709.92, 500,560.68 and 80,992.50

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Solution

The fourth proportional to 333,709.92, 500,560.68 and 80,992.50 is: 121,487.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,709.92 : 500,560.68 = 80,992.50 : x
  2. Step 2: Convert to fraction form
    333,709.92/500,560.68 = 80,992.50/x
  3. Step 3: Cross multiply
    333,709.92x = 500,560.68 × 80,992.50
  4. Step 4: Simplify right side
    333,709.92x = 40,541,660,874.90
  5. Step 5: Solve for x
    x = 40,541,660,874.90/333,709.92
  6. Step 6: Final answer
    x = 121,487.73

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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.