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Finding the Fourth Proportional to 366,994.43, 550,155.09 and 142,297.19

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Solution

The fourth proportional to 366,994.43, 550,155.09 and 142,297.19 is: 213,315.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,994.43 : 550,155.09 = 142,297.19 : x
  2. Step 2: Convert to fraction form
    366,994.43/550,155.09 = 142,297.19/x
  3. Step 3: Cross multiply
    366,994.43x = 550,155.09 × 142,297.19
  4. Step 4: Simplify right side
    366,994.43x = 78,285,523,371.20
  5. Step 5: Solve for x
    x = 78,285,523,371.20/366,994.43
  6. Step 6: Final answer
    x = 213,315.29

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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.