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Finding the Fourth Proportional to 79,472.46, 109,672.74 and 43,663.22

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Solution

The fourth proportional to 79,472.46, 109,672.74 and 43,663.22 is: 60,255.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,472.46 : 109,672.74 = 43,663.22 : x
  2. Step 2: Convert to fraction form
    79,472.46/109,672.74 = 43,663.22/x
  3. Step 3: Cross multiply
    79,472.46x = 109,672.74 × 43,663.22
  4. Step 4: Simplify right side
    79,472.46x = 4,788,664,426.26
  5. Step 5: Solve for x
    x = 4,788,664,426.26/79,472.46
  6. Step 6: Final answer
    x = 60,255.65

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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.