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Finding the Fourth Proportional to 86,796.87, 119,780.62 and 50,988.39

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Solution

The fourth proportional to 86,796.87, 119,780.62 and 50,988.39 is: 70,364.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,796.87 : 119,780.62 = 50,988.39 : x
  2. Step 2: Convert to fraction form
    86,796.87/119,780.62 = 50,988.39/x
  3. Step 3: Cross multiply
    86,796.87x = 119,780.62 × 50,988.39
  4. Step 4: Simplify right side
    86,796.87x = 6,107,420,677.16
  5. Step 5: Solve for x
    x = 6,107,420,677.16/86,796.87
  6. Step 6: Final answer
    x = 70,364.53

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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.