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Finding the Fourth Proportional to 373,564.78, 515,518.26 and 203,797.69

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Solution

The fourth proportional to 373,564.78, 515,518.26 and 203,797.69 is: 281,240.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,564.78 : 515,518.26 = 203,797.69 : x
  2. Step 2: Convert to fraction form
    373,564.78/515,518.26 = 203,797.69/x
  3. Step 3: Cross multiply
    373,564.78x = 515,518.26 × 203,797.69
  4. Step 4: Simplify right side
    373,564.78x = 105,061,428,487.78
  5. Step 5: Solve for x
    x = 105,061,428,487.78/373,564.78
  6. Step 6: Final answer
    x = 281,240.19

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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.