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Finding the Fourth Proportional to 367,750.26, 551,661.17 and 143,128.96

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Solution

The fourth proportional to 367,750.26, 551,661.17 and 143,128.96 is: 214,707.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,750.26 : 551,661.17 = 143,128.96 : x
  2. Step 2: Convert to fraction form
    367,750.26/551,661.17 = 143,128.96/x
  3. Step 3: Cross multiply
    367,750.26x = 551,661.17 × 143,128.96
  4. Step 4: Simplify right side
    367,750.26x = 78,958,687,439.69
  5. Step 5: Solve for x
    x = 78,958,687,439.69/367,750.26
  6. Step 6: Final answer
    x = 214,707.36

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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.