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Finding the Fourth Proportional to 79,729.56, 110,026.92 and 43,919.72

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Solution

The fourth proportional to 79,729.56, 110,026.92 and 43,919.72 is: 60,609.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,729.56 : 110,026.92 = 43,919.72 : x
  2. Step 2: Convert to fraction form
    79,729.56/110,026.92 = 43,919.72/x
  3. Step 3: Cross multiply
    79,729.56x = 110,026.92 × 43,919.72
  4. Step 4: Simplify right side
    79,729.56x = 4,832,351,518.86
  5. Step 5: Solve for x
    x = 4,832,351,518.86/79,729.56
  6. Step 6: Final answer
    x = 60,609.28

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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.