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Finding the Fourth Proportional to 79,466.44, 109,694.92 and 47,629.20

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Solution

The fourth proportional to 79,466.44, 109,694.92 and 47,629.20 is: 65,747.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,466.44 : 109,694.92 = 47,629.20 : x
  2. Step 2: Convert to fraction form
    79,466.44/109,694.92 = 47,629.20/x
  3. Step 3: Cross multiply
    79,466.44x = 109,694.92 × 47,629.20
  4. Step 4: Simplify right side
    79,466.44x = 5,224,681,283.66
  5. Step 5: Solve for x
    x = 5,224,681,283.66/79,466.44
  6. Step 6: Final answer
    x = 65,747.02

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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.