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Finding the Fourth Proportional to 70,165.44, 105,247.89 and 22,819.86

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Solution

The fourth proportional to 70,165.44, 105,247.89 and 22,819.86 is: 34,229.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,165.44 : 105,247.89 = 22,819.86 : x
  2. Step 2: Convert to fraction form
    70,165.44/105,247.89 = 22,819.86/x
  3. Step 3: Cross multiply
    70,165.44x = 105,247.89 × 22,819.86
  4. Step 4: Simplify right side
    70,165.44x = 2,401,742,115.10
  5. Step 5: Solve for x
    x = 2,401,742,115.10/70,165.44
  6. Step 6: Final answer
    x = 34,229.70

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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.