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Finding the Fourth Proportional to 79,360.56, 109,518.90 and 43,553.90

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Solution

The fourth proportional to 79,360.56, 109,518.90 and 43,553.90 is: 60,105.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,360.56 : 109,518.90 = 43,553.90 : x
  2. Step 2: Convert to fraction form
    79,360.56/109,518.90 = 43,553.90/x
  3. Step 3: Cross multiply
    79,360.56x = 109,518.90 × 43,553.90
  4. Step 4: Simplify right side
    79,360.56x = 4,769,974,944.91
  5. Step 5: Solve for x
    x = 4,769,974,944.91/79,360.56
  6. Step 6: Final answer
    x = 60,105.11

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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.