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Finding the Fourth Proportional to 375,343.43, 517,974.21 and 203,262.75

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Solution

The fourth proportional to 375,343.43, 517,974.21 and 203,262.75 is: 280,502.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,343.43 : 517,974.21 = 203,262.75 : x
  2. Step 2: Convert to fraction form
    375,343.43/517,974.21 = 203,262.75/x
  3. Step 3: Cross multiply
    375,343.43x = 517,974.21 × 203,262.75
  4. Step 4: Simplify right side
    375,343.43x = 105,284,862,353.68
  5. Step 5: Solve for x
    x = 105,284,862,353.68/375,343.43
  6. Step 6: Final answer
    x = 280,502.74

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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.