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Finding the Fourth Proportional to 81,861.58, 122,792.37 and 22,697.25

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Solution

The fourth proportional to 81,861.58, 122,792.37 and 22,697.25 is: 34,045.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,861.58 : 122,792.37 = 22,697.25 : x
  2. Step 2: Convert to fraction form
    81,861.58/122,792.37 = 22,697.25/x
  3. Step 3: Cross multiply
    81,861.58x = 122,792.37 × 22,697.25
  4. Step 4: Simplify right side
    81,861.58x = 2,787,049,119.98
  5. Step 5: Solve for x
    x = 2,787,049,119.98/81,861.58
  6. Step 6: Final answer
    x = 34,045.88

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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.