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Finding the Fourth Proportional to 86,752.80, 119,690.82 and 50,951.70

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Solution

The fourth proportional to 86,752.80, 119,690.82 and 50,951.70 is: 70,296.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,752.80 : 119,690.82 = 50,951.70 : x
  2. Step 2: Convert to fraction form
    86,752.80/119,690.82 = 50,951.70/x
  3. Step 3: Cross multiply
    86,752.80x = 119,690.82 × 50,951.70
  4. Step 4: Simplify right side
    86,752.80x = 6,098,450,753.39
  5. Step 5: Solve for x
    x = 6,098,450,753.39/86,752.80
  6. Step 6: Final answer
    x = 70,296.88

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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.