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Finding the Fourth Proportional to 222,617.22, 333,921.15 and 54,138.45

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Solution

The fourth proportional to 222,617.22, 333,921.15 and 54,138.45 is: 81,206.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,617.22 : 333,921.15 = 54,138.45 : x
  2. Step 2: Convert to fraction form
    222,617.22/333,921.15 = 54,138.45/x
  3. Step 3: Cross multiply
    222,617.22x = 333,921.15 × 54,138.45
  4. Step 4: Simplify right side
    222,617.22x = 18,077,973,483.22
  5. Step 5: Solve for x
    x = 18,077,973,483.22/222,617.22
  6. Step 6: Final answer
    x = 81,206.54

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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.