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Finding the Fourth Proportional to 243,568.30, 364,963.65 and 203,910.70

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Solution

The fourth proportional to 243,568.30, 364,963.65 and 203,910.70 is: 305,540.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,568.30 : 364,963.65 = 203,910.70 : x
  2. Step 2: Convert to fraction form
    243,568.30/364,963.65 = 203,910.70/x
  3. Step 3: Cross multiply
    243,568.30x = 364,963.65 × 203,910.70
  4. Step 4: Simplify right side
    243,568.30x = 74,419,993,346.06
  5. Step 5: Solve for x
    x = 74,419,993,346.06/243,568.30
  6. Step 6: Final answer
    x = 305,540.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.