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Finding the Fourth Proportional to 143,307.97, 197,579.05 and 92,229.37

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Solution

The fourth proportional to 143,307.97, 197,579.05 and 92,229.37 is: 127,156.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,307.97 : 197,579.05 = 92,229.37 : x
  2. Step 2: Convert to fraction form
    143,307.97/197,579.05 = 92,229.37/x
  3. Step 3: Cross multiply
    143,307.97x = 197,579.05 × 92,229.37
  4. Step 4: Simplify right side
    143,307.97x = 18,222,591,306.70
  5. Step 5: Solve for x
    x = 18,222,591,306.70/143,307.97
  6. Step 6: Final answer
    x = 127,156.86

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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.