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Finding the Fourth Proportional to 69,786.88, 96,315.20 and 44,709.28

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Solution

The fourth proportional to 69,786.88, 96,315.20 and 44,709.28 is: 61,704.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,786.88 : 96,315.20 = 44,709.28 : x
  2. Step 2: Convert to fraction form
    69,786.88/96,315.20 = 44,709.28/x
  3. Step 3: Cross multiply
    69,786.88x = 96,315.20 × 44,709.28
  4. Step 4: Simplify right side
    69,786.88x = 4,306,183,245.06
  5. Step 5: Solve for x
    x = 4,306,183,245.06/69,786.88
  6. Step 6: Final answer
    x = 61,704.77

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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.