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Finding the Fourth Proportional to 119,713.82, 165,211.17 and 68,726.18

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Solution

The fourth proportional to 119,713.82, 165,211.17 and 68,726.18 is: 94,845.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,713.82 : 165,211.17 = 68,726.18 : x
  2. Step 2: Convert to fraction form
    119,713.82/165,211.17 = 68,726.18/x
  3. Step 3: Cross multiply
    119,713.82x = 165,211.17 × 68,726.18
  4. Step 4: Simplify right side
    119,713.82x = 11,354,332,607.43
  5. Step 5: Solve for x
    x = 11,354,332,607.43/119,713.82
  6. Step 6: Final answer
    x = 94,845.63

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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.