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Finding the Fourth Proportional to 84,998.65, 117,302.11 and 49,181.73

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Solution

The fourth proportional to 84,998.65, 117,302.11 and 49,181.73 is: 67,873.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,998.65 : 117,302.11 = 49,181.73 : x
  2. Step 2: Convert to fraction form
    84,998.65/117,302.11 = 49,181.73/x
  3. Step 3: Cross multiply
    84,998.65x = 117,302.11 × 49,181.73
  4. Step 4: Simplify right side
    84,998.65x = 5,769,120,927.16
  5. Step 5: Solve for x
    x = 5,769,120,927.16/84,998.65
  6. Step 6: Final answer
    x = 67,873.09

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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.