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Finding the Fourth Proportional to 79,620.91, 119,427.43 and 29,697.12

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Solution

The fourth proportional to 79,620.91, 119,427.43 and 29,697.12 is: 44,544.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,620.91 : 119,427.43 = 29,697.12 : x
  2. Step 2: Convert to fraction form
    79,620.91/119,427.43 = 29,697.12/x
  3. Step 3: Cross multiply
    79,620.91x = 119,427.43 × 29,697.12
  4. Step 4: Simplify right side
    79,620.91x = 3,546,650,720.00
  5. Step 5: Solve for x
    x = 3,546,650,720.00/79,620.91
  6. Step 6: Final answer
    x = 44,544.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.