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Finding the Fourth Proportional to 119,296.80, 164,629.92 and 68,310.30

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Solution

The fourth proportional to 119,296.80, 164,629.92 and 68,310.30 is: 94,268.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,296.80 : 164,629.92 = 68,310.30 : x
  2. Step 2: Convert to fraction form
    119,296.80/164,629.92 = 68,310.30/x
  3. Step 3: Cross multiply
    119,296.80x = 164,629.92 × 68,310.30
  4. Step 4: Simplify right side
    119,296.80x = 11,245,919,224.18
  5. Step 5: Solve for x
    x = 11,245,919,224.18/119,296.80
  6. Step 6: Final answer
    x = 94,268.41

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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.