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Finding the Fourth Proportional to 367,576.20, 551,221.56 and 142,906.68

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Solution

The fourth proportional to 367,576.20, 551,221.56 and 142,906.68 is: 214,304.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,576.20 : 551,221.56 = 142,906.68 : x
  2. Step 2: Convert to fraction form
    367,576.20/551,221.56 = 142,906.68/x
  3. Step 3: Cross multiply
    367,576.20x = 551,221.56 × 142,906.68
  4. Step 4: Simplify right side
    367,576.20x = 78,773,243,084.02
  5. Step 5: Solve for x
    x = 78,773,243,084.02/367,576.20
  6. Step 6: Final answer
    x = 214,304.53

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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.