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Finding the Fourth Proportional to 373,798.80, 515,824.20 and 204,022.80

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Solution

The fourth proportional to 373,798.80, 515,824.20 and 204,022.80 is: 281,541.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,798.80 : 515,824.20 = 204,022.80 : x
  2. Step 2: Convert to fraction form
    373,798.80/515,824.20 = 204,022.80/x
  3. Step 3: Cross multiply
    373,798.80x = 515,824.20 × 204,022.80
  4. Step 4: Simplify right side
    373,798.80x = 105,239,897,591.76
  5. Step 5: Solve for x
    x = 105,239,897,591.76/373,798.80
  6. Step 6: Final answer
    x = 281,541.56

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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.