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Finding the Fourth Proportional to 222,371.88, 306,923.62 and 173,877.86

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Solution

The fourth proportional to 222,371.88, 306,923.62 and 173,877.86 is: 239,990.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,371.88 : 306,923.62 = 173,877.86 : x
  2. Step 2: Convert to fraction form
    222,371.88/306,923.62 = 173,877.86/x
  3. Step 3: Cross multiply
    222,371.88x = 306,923.62 × 173,877.86
  4. Step 4: Simplify right side
    222,371.88x = 53,367,222,229.05
  5. Step 5: Solve for x
    x = 53,367,222,229.05/222,371.88
  6. Step 6: Final answer
    x = 239,990.88

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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.