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Finding the Fourth Proportional to 119,744.53, 165,241.82 and 68,721.82

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Solution

The fourth proportional to 119,744.53, 165,241.82 and 68,721.82 is: 94,832.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,744.53 : 165,241.82 = 68,721.82 : x
  2. Step 2: Convert to fraction form
    119,744.53/165,241.82 = 68,721.82/x
  3. Step 3: Cross multiply
    119,744.53x = 165,241.82 × 68,721.82
  4. Step 4: Simplify right side
    119,744.53x = 11,355,718,369.21
  5. Step 5: Solve for x
    x = 11,355,718,369.21/119,744.53
  6. Step 6: Final answer
    x = 94,832.88

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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.