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Finding the Fourth Proportional to 119,778.44, 165,293.91 and 68,794.47

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Solution

The fourth proportional to 119,778.44, 165,293.91 and 68,794.47 is: 94,936.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,778.44 : 165,293.91 = 68,794.47 : x
  2. Step 2: Convert to fraction form
    119,778.44/165,293.91 = 68,794.47/x
  3. Step 3: Cross multiply
    119,778.44x = 165,293.91 × 68,794.47
  4. Step 4: Simplify right side
    119,778.44x = 11,371,306,932.68
  5. Step 5: Solve for x
    x = 11,371,306,932.68/119,778.44
  6. Step 6: Final answer
    x = 94,936.18

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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.