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Finding the Fourth Proportional to 206,668.70, 309,930.15 and 73,553.30

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Solution

The fourth proportional to 206,668.70, 309,930.15 and 73,553.30 is: 110,304.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,668.70 : 309,930.15 = 73,553.30 : x
  2. Step 2: Convert to fraction form
    206,668.70/309,930.15 = 73,553.30/x
  3. Step 3: Cross multiply
    206,668.70x = 309,930.15 × 73,553.30
  4. Step 4: Simplify right side
    206,668.70x = 22,796,385,302.00
  5. Step 5: Solve for x
    x = 22,796,385,302.00/206,668.70
  6. Step 6: Final answer
    x = 110,304.00

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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.