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Finding the Fourth Proportional to 373,532, 515,474.18 and 203,766.80

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Solution

The fourth proportional to 373,532, 515,474.18 and 203,766.80 is: 281,198.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,532 : 515,474.18 = 203,766.80 : x
  2. Step 2: Convert to fraction form
    373,532/515,474.18 = 203,766.80/x
  3. Step 3: Cross multiply
    373,532x = 515,474.18 × 203,766.80
  4. Step 4: Simplify right side
    373,532x = 105,036,524,141.22
  5. Step 5: Solve for x
    x = 105,036,524,141.22/373,532
  6. Step 6: Final answer
    x = 281,198.19

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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.