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Finding the Fourth Proportional to 79,194.97, 109,290.27 and 43,388.38

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Solution

The fourth proportional to 79,194.97, 109,290.27 and 43,388.38 is: 59,876.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,194.97 : 109,290.27 = 43,388.38 : x
  2. Step 2: Convert to fraction form
    79,194.97/109,290.27 = 43,388.38/x
  3. Step 3: Cross multiply
    79,194.97x = 109,290.27 × 43,388.38
  4. Step 4: Simplify right side
    79,194.97x = 4,741,927,765.06
  5. Step 5: Solve for x
    x = 4,741,927,765.06/79,194.97
  6. Step 6: Final answer
    x = 59,876.63

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1.5x scale

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.