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Finding the Fourth Proportional to 79,720.44, 119,591.63 and 35,346.21

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Solution

The fourth proportional to 79,720.44, 119,591.63 and 35,346.21 is: 53,024.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,720.44 : 119,591.63 = 35,346.21 : x
  2. Step 2: Convert to fraction form
    79,720.44/119,591.63 = 35,346.21/x
  3. Step 3: Cross multiply
    79,720.44x = 119,591.63 × 35,346.21
  4. Step 4: Simplify right side
    79,720.44x = 4,227,110,375.57
  5. Step 5: Solve for x
    x = 4,227,110,375.57/79,720.44
  6. Step 6: Final answer
    x = 53,024.18

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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.