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Finding the Fourth Proportional to 86,664.87, 119,598.31 and 50,855.48

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Solution

The fourth proportional to 86,664.87, 119,598.31 and 50,855.48 is: 70,181.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,664.87 : 119,598.31 = 50,855.48 : x
  2. Step 2: Convert to fraction form
    86,664.87/119,598.31 = 50,855.48/x
  3. Step 3: Cross multiply
    86,664.87x = 119,598.31 × 50,855.48
  4. Step 4: Simplify right side
    86,664.87x = 6,082,228,609.97
  5. Step 5: Solve for x
    x = 6,082,228,609.97/86,664.87
  6. Step 6: Final answer
    x = 70,181.02

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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.