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Finding the Fourth Proportional to 119,626.88, 165,083.78 and 68,647.63

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Solution

The fourth proportional to 119,626.88, 165,083.78 and 68,647.63 is: 94,732.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,626.88 : 165,083.78 = 68,647.63 : x
  2. Step 2: Convert to fraction form
    119,626.88/165,083.78 = 68,647.63/x
  3. Step 3: Cross multiply
    119,626.88x = 165,083.78 × 68,647.63
  4. Step 4: Simplify right side
    119,626.88x = 11,332,609,905.20
  5. Step 5: Solve for x
    x = 11,332,609,905.20/119,626.88
  6. Step 6: Final answer
    x = 94,732.97

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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.