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Finding the Fourth Proportional to 436,161.45, 654,241.94 and 136,665.57

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Solution

The fourth proportional to 436,161.45, 654,241.94 and 136,665.57 is: 204,998.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,161.45 : 654,241.94 = 136,665.57 : x
  2. Step 2: Convert to fraction form
    436,161.45/654,241.94 = 136,665.57/x
  3. Step 3: Cross multiply
    436,161.45x = 654,241.94 × 136,665.57
  4. Step 4: Simplify right side
    436,161.45x = 89,412,347,648.01
  5. Step 5: Solve for x
    x = 89,412,347,648.01/436,161.45
  6. Step 6: Final answer
    x = 204,998.28

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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.