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Finding the Fourth Proportional to 205,553.62, 308,286.69 and 65,279.44

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Solution

The fourth proportional to 205,553.62, 308,286.69 and 65,279.44 is: 97,905.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,553.62 : 308,286.69 = 65,279.44 : x
  2. Step 2: Convert to fraction form
    205,553.62/308,286.69 = 65,279.44/x
  3. Step 3: Cross multiply
    205,553.62x = 308,286.69 × 65,279.44
  4. Step 4: Simplify right side
    205,553.62x = 20,124,782,482.65
  5. Step 5: Solve for x
    x = 20,124,782,482.65/205,553.62
  6. Step 6: Final answer
    x = 97,905.27

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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.