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Finding the Fourth Proportional to 373,673.50, 515,680.37 and 203,918.56

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Solution

The fourth proportional to 373,673.50, 515,680.37 and 203,918.56 is: 281,413.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,673.50 : 515,680.37 = 203,918.56 : x
  2. Step 2: Convert to fraction form
    373,673.50/515,680.37 = 203,918.56/x
  3. Step 3: Cross multiply
    373,673.50x = 515,680.37 × 203,918.56
  4. Step 4: Simplify right side
    373,673.50x = 105,156,797,451.07
  5. Step 5: Solve for x
    x = 105,156,797,451.07/373,673.50
  6. Step 6: Final answer
    x = 281,413.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.