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Finding the Fourth Proportional to 550,020.73, 825,031.78 and 150,664.96

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Solution

The fourth proportional to 550,020.73, 825,031.78 and 150,664.96 is: 225,997.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,020.73 : 825,031.78 = 150,664.96 : x
  2. Step 2: Convert to fraction form
    550,020.73/825,031.78 = 150,664.96/x
  3. Step 3: Cross multiply
    550,020.73x = 825,031.78 × 150,664.96
  4. Step 4: Simplify right side
    550,020.73x = 124,303,380,787.06
  5. Step 5: Solve for x
    x = 124,303,380,787.06/550,020.73
  6. Step 6: Final answer
    x = 225,997.63

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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.