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Finding the Fourth Proportional to 367,441.92, 551,285.60 and 142,809.68

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Solution

The fourth proportional to 367,441.92, 551,285.60 and 142,809.68 is: 214,262.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,441.92 : 551,285.60 = 142,809.68 : x
  2. Step 2: Convert to fraction form
    367,441.92/551,285.60 = 142,809.68/x
  3. Step 3: Cross multiply
    367,441.92x = 551,285.60 × 142,809.68
  4. Step 4: Simplify right side
    367,441.92x = 78,728,920,788.77
  5. Step 5: Solve for x
    x = 78,728,920,788.77/367,441.92
  6. Step 6: Final answer
    x = 214,262.22

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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.