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Finding the Fourth Proportional to 79,422.70, 109,605.18 and 43,610.62

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Solution

The fourth proportional to 79,422.70, 109,605.18 and 43,610.62 is: 60,183.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,422.70 : 109,605.18 = 43,610.62 : x
  2. Step 2: Convert to fraction form
    79,422.70/109,605.18 = 43,610.62/x
  3. Step 3: Cross multiply
    79,422.70x = 109,605.18 × 43,610.62
  4. Step 4: Simplify right side
    79,422.70x = 4,779,949,855.01
  5. Step 5: Solve for x
    x = 4,779,949,855.01/79,422.70
  6. Step 6: Final answer
    x = 60,183.67

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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.