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Finding the Fourth Proportional to 80,588, 111,213.42 and 44,288.96

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Solution

The fourth proportional to 80,588, 111,213.42 and 44,288.96 is: 61,119.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,588 : 111,213.42 = 44,288.96 : x
  2. Step 2: Convert to fraction form
    80,588/111,213.42 = 44,288.96/x
  3. Step 3: Cross multiply
    80,588x = 111,213.42 × 44,288.96
  4. Step 4: Simplify right side
    80,588x = 4,925,526,709.84
  5. Step 5: Solve for x
    x = 4,925,526,709.84/80,588
  6. Step 6: Final answer
    x = 61,119.85

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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.