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Finding the Fourth Proportional to 79,630.95, 109,887.96 and 43,817.61

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Solution

The fourth proportional to 79,630.95, 109,887.96 and 43,817.61 is: 60,466.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,630.95 : 109,887.96 = 43,817.61 : x
  2. Step 2: Convert to fraction form
    79,630.95/109,887.96 = 43,817.61/x
  3. Step 3: Cross multiply
    79,630.95x = 109,887.96 × 43,817.61
  4. Step 4: Simplify right side
    79,630.95x = 4,815,027,774.98
  5. Step 5: Solve for x
    x = 4,815,027,774.98/79,630.95
  6. Step 6: Final answer
    x = 60,466.79

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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.