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Finding the Fourth Proportional to 222,758.70, 334,138.05 and 80,603.70

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Solution

The fourth proportional to 222,758.70, 334,138.05 and 80,603.70 is: 120,905.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,758.70 : 334,138.05 = 80,603.70 : x
  2. Step 2: Convert to fraction form
    222,758.70/334,138.05 = 80,603.70/x
  3. Step 3: Cross multiply
    222,758.70x = 334,138.05 × 80,603.70
  4. Step 4: Simplify right side
    222,758.70x = 26,932,763,140.79
  5. Step 5: Solve for x
    x = 26,932,763,140.79/222,758.70
  6. Step 6: Final answer
    x = 120,905.55

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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.