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Finding the Fourth Proportional to 206,557.66, 309,743.03 and 73,441.46

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Solution

The fourth proportional to 206,557.66, 309,743.03 and 73,441.46 is: 110,128.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,557.66 : 309,743.03 = 73,441.46 : x
  2. Step 2: Convert to fraction form
    206,557.66/309,743.03 = 73,441.46/x
  3. Step 3: Cross multiply
    206,557.66x = 309,743.03 × 73,441.46
  4. Step 4: Simplify right side
    206,557.66x = 22,747,980,348.02
  5. Step 5: Solve for x
    x = 22,747,980,348.02/206,557.66
  6. Step 6: Final answer
    x = 110,128.96

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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.