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Finding the Fourth Proportional to 373,467.93, 515,391.90 and 203,702.07

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Solution

The fourth proportional to 373,467.93, 515,391.90 and 203,702.07 is: 281,112.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,467.93 : 515,391.90 = 203,702.07 : x
  2. Step 2: Convert to fraction form
    373,467.93/515,391.90 = 203,702.07/x
  3. Step 3: Cross multiply
    373,467.93x = 515,391.90 × 203,702.07
  4. Step 4: Simplify right side
    373,467.93x = 104,986,396,891.23
  5. Step 5: Solve for x
    x = 104,986,396,891.23/373,467.93
  6. Step 6: Final answer
    x = 281,112.21

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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.