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Finding the Fourth Proportional to 445,722.67, 668,682.41 and 165,239.92

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Solution

The fourth proportional to 445,722.67, 668,682.41 and 165,239.92 is: 247,896.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,722.67 : 668,682.41 = 165,239.92 : x
  2. Step 2: Convert to fraction form
    445,722.67/668,682.41 = 165,239.92/x
  3. Step 3: Cross multiply
    445,722.67x = 668,682.41 × 165,239.92
  4. Step 4: Simplify right side
    445,722.67x = 110,493,027,933.81
  5. Step 5: Solve for x
    x = 110,493,027,933.81/445,722.67
  6. Step 6: Final answer
    x = 247,896.36

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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.