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Finding the Fourth Proportional to 436,481.97, 654,750.63 and 136,974.39

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Solution

The fourth proportional to 436,481.97, 654,750.63 and 136,974.39 is: 205,470.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,481.97 : 654,750.63 = 136,974.39 : x
  2. Step 2: Convert to fraction form
    436,481.97/654,750.63 = 136,974.39/x
  3. Step 3: Cross multiply
    436,481.97x = 654,750.63 × 136,974.39
  4. Step 4: Simplify right side
    436,481.97x = 89,684,068,146.37
  5. Step 5: Solve for x
    x = 89,684,068,146.37/436,481.97
  6. Step 6: Final answer
    x = 205,470.27

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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.