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Finding the Fourth Proportional to 79,372.44, 109,535.31 and 43,565.76

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Solution

The fourth proportional to 79,372.44, 109,535.31 and 43,565.76 is: 60,121.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,372.44 : 109,535.31 = 43,565.76 : x
  2. Step 2: Convert to fraction form
    79,372.44/109,535.31 = 43,565.76/x
  3. Step 3: Cross multiply
    79,372.44x = 109,535.31 × 43,565.76
  4. Step 4: Simplify right side
    79,372.44x = 4,771,989,026.99
  5. Step 5: Solve for x
    x = 4,771,989,026.99/79,372.44
  6. Step 6: Final answer
    x = 60,121.49

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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.