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Finding the Fourth Proportional to 83,951.94, 115,861.85 and 62,694.30

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Solution

The fourth proportional to 83,951.94, 115,861.85 and 62,694.30 is: 86,524.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,951.94 : 115,861.85 = 62,694.30 : x
  2. Step 2: Convert to fraction form
    83,951.94/115,861.85 = 62,694.30/x
  3. Step 3: Cross multiply
    83,951.94x = 115,861.85 × 62,694.30
  4. Step 4: Simplify right side
    83,951.94x = 7,263,877,268.98
  5. Step 5: Solve for x
    x = 7,263,877,268.98/83,951.94
  6. Step 6: Final answer
    x = 86,524.23

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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.