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Finding the Fourth Proportional to 222,558.88, 306,963.72 and 154,575.96

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Solution

The fourth proportional to 222,558.88, 306,963.72 and 154,575.96 is: 213,198.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,558.88 : 306,963.72 = 154,575.96 : x
  2. Step 2: Convert to fraction form
    222,558.88/306,963.72 = 154,575.96/x
  3. Step 3: Cross multiply
    222,558.88x = 306,963.72 × 154,575.96
  4. Step 4: Simplify right side
    222,558.88x = 47,449,211,704.17
  5. Step 5: Solve for x
    x = 47,449,211,704.17/222,558.88
  6. Step 6: Final answer
    x = 213,198.47

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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.