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Finding the Fourth Proportional to 373,843.55, 515,905.71 and 204,081.32

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Solution

The fourth proportional to 373,843.55, 515,905.71 and 204,081.32 is: 281,633.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,843.55 : 515,905.71 = 204,081.32 : x
  2. Step 2: Convert to fraction form
    373,843.55/515,905.71 = 204,081.32/x
  3. Step 3: Cross multiply
    373,843.55x = 515,905.71 × 204,081.32
  4. Step 4: Simplify right side
    373,843.55x = 105,286,718,816.80
  5. Step 5: Solve for x
    x = 105,286,718,816.80/373,843.55
  6. Step 6: Final answer
    x = 281,633.10

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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.