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Finding the Fourth Proportional to 118,893.11, 164,073.66 and 65,179.22

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Solution

The fourth proportional to 118,893.11, 164,073.66 and 65,179.22 is: 89,947.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,893.11 : 164,073.66 = 65,179.22 : x
  2. Step 2: Convert to fraction form
    118,893.11/164,073.66 = 65,179.22/x
  3. Step 3: Cross multiply
    118,893.11x = 164,073.66 × 65,179.22
  4. Step 4: Simplify right side
    118,893.11x = 10,694,193,181.35
  5. Step 5: Solve for x
    x = 10,694,193,181.35/118,893.11
  6. Step 6: Final answer
    x = 89,947.96

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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.