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Finding the Fourth Proportional to 119,843.40, 165,383.94 and 68,859.48

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Solution

The fourth proportional to 119,843.40, 165,383.94 and 68,859.48 is: 95,026.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,843.40 : 165,383.94 = 68,859.48 : x
  2. Step 2: Convert to fraction form
    119,843.40/165,383.94 = 68,859.48/x
  3. Step 3: Cross multiply
    119,843.40x = 165,383.94 × 68,859.48
  4. Step 4: Simplify right side
    119,843.40x = 11,388,252,108.75
  5. Step 5: Solve for x
    x = 11,388,252,108.75/119,843.40
  6. Step 6: Final answer
    x = 95,026.11

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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.