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Finding the Fourth Proportional to 512,982.50, 769,556.45 and 157,996.41

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Solution

The fourth proportional to 512,982.50, 769,556.45 and 157,996.41 is: 237,020.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,982.50 : 769,556.45 = 157,996.41 : x
  2. Step 2: Convert to fraction form
    512,982.50/769,556.45 = 157,996.41/x
  3. Step 3: Cross multiply
    512,982.50x = 769,556.45 × 157,996.41
  4. Step 4: Simplify right side
    512,982.50x = 121,587,155,602.36
  5. Step 5: Solve for x
    x = 121,587,155,602.36/512,982.50
  6. Step 6: Final answer
    x = 237,020.09

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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.