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Finding the Fourth Proportional to 222,456.05, 333,536.45 and 155,976.72

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Solution

The fourth proportional to 222,456.05, 333,536.45 and 155,976.72 is: 233,861.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,456.05 : 333,536.45 = 155,976.72 : x
  2. Step 2: Convert to fraction form
    222,456.05/333,536.45 = 155,976.72/x
  3. Step 3: Cross multiply
    222,456.05x = 333,536.45 × 155,976.72
  4. Step 4: Simplify right side
    222,456.05x = 52,023,919,440.80
  5. Step 5: Solve for x
    x = 52,023,919,440.80/222,456.05
  6. Step 6: Final answer
    x = 233,861.56

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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.