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Finding the Fourth Proportional to 206,583.75, 310,006.71 and 88,255.98

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Solution

The fourth proportional to 206,583.75, 310,006.71 and 88,255.98 is: 132,439.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,583.75 : 310,006.71 = 88,255.98 : x
  2. Step 2: Convert to fraction form
    206,583.75/310,006.71 = 88,255.98/x
  3. Step 3: Cross multiply
    206,583.75x = 310,006.71 × 88,255.98
  4. Step 4: Simplify right side
    206,583.75x = 27,359,945,997.63
  5. Step 5: Solve for x
    x = 27,359,945,997.63/206,583.75
  6. Step 6: Final answer
    x = 132,439.97

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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.