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Finding the Fourth Proportional to 83,588.62, 125,579.76 and 68,104.66

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Solution

The fourth proportional to 83,588.62, 125,579.76 and 68,104.66 is: 102,317.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,588.62 : 125,579.76 = 68,104.66 : x
  2. Step 2: Convert to fraction form
    83,588.62/125,579.76 = 68,104.66/x
  3. Step 3: Cross multiply
    83,588.62x = 125,579.76 × 68,104.66
  4. Step 4: Simplify right side
    83,588.62x = 8,552,566,857.68
  5. Step 5: Solve for x
    x = 8,552,566,857.68/83,588.62
  6. Step 6: Final answer
    x = 102,317.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.