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Finding the Fourth Proportional to 375,102.39, 517,644.75 and 222,149.28

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Solution

The fourth proportional to 375,102.39, 517,644.75 and 222,149.28 is: 306,568.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,102.39 : 517,644.75 = 222,149.28 : x
  2. Step 2: Convert to fraction form
    375,102.39/517,644.75 = 222,149.28/x
  3. Step 3: Cross multiply
    375,102.39x = 517,644.75 × 222,149.28
  4. Step 4: Simplify right side
    375,102.39x = 114,994,408,508.28
  5. Step 5: Solve for x
    x = 114,994,408,508.28/375,102.39
  6. Step 6: Final answer
    x = 306,568.05

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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.