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Finding the Fourth Proportional to 222,924.70, 334,480.85 and 138,755.28

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Solution

The fourth proportional to 222,924.70, 334,480.85 and 138,755.28 is: 208,191.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,924.70 : 334,480.85 = 138,755.28 : x
  2. Step 2: Convert to fraction form
    222,924.70/334,480.85 = 138,755.28/x
  3. Step 3: Cross multiply
    222,924.70x = 334,480.85 × 138,755.28
  4. Step 4: Simplify right side
    222,924.70x = 46,410,983,996.39
  5. Step 5: Solve for x
    x = 46,410,983,996.39/222,924.70
  6. Step 6: Final answer
    x = 208,191.30

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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.