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Finding the Fourth Proportional to 373,982.92, 560,640.78 and 137,270.68

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Solution

The fourth proportional to 373,982.92, 560,640.78 and 137,270.68 is: 205,783.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,982.92 : 560,640.78 = 137,270.68 : x
  2. Step 2: Convert to fraction form
    373,982.92/560,640.78 = 137,270.68/x
  3. Step 3: Cross multiply
    373,982.92x = 560,640.78 × 137,270.68
  4. Step 4: Simplify right side
    373,982.92x = 76,959,541,106.33
  5. Step 5: Solve for x
    x = 76,959,541,106.33/373,982.92
  6. Step 6: Final answer
    x = 205,783.57

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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.