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Finding the Fourth Proportional to 204,707.98, 307,061.97 and 79,961.50

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Solution

The fourth proportional to 204,707.98, 307,061.97 and 79,961.50 is: 119,942.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,707.98 : 307,061.97 = 79,961.50 : x
  2. Step 2: Convert to fraction form
    204,707.98/307,061.97 = 79,961.50/x
  3. Step 3: Cross multiply
    204,707.98x = 307,061.97 × 79,961.50
  4. Step 4: Simplify right side
    204,707.98x = 24,553,135,714.16
  5. Step 5: Solve for x
    x = 24,553,135,714.16/204,707.98
  6. Step 6: Final answer
    x = 119,942.25

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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.