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Finding the Fourth Proportional to 323,930.88, 485,899.56 and 113,573.88

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Solution

The fourth proportional to 323,930.88, 485,899.56 and 113,573.88 is: 170,361.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,930.88 : 485,899.56 = 113,573.88 : x
  2. Step 2: Convert to fraction form
    323,930.88/485,899.56 = 113,573.88/x
  3. Step 3: Cross multiply
    323,930.88x = 485,899.56 × 113,573.88
  4. Step 4: Simplify right side
    323,930.88x = 55,185,498,319.49
  5. Step 5: Solve for x
    x = 55,185,498,319.49/323,930.88
  6. Step 6: Final answer
    x = 170,361.96

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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.