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Finding the Fourth Proportional to 78,744.68, 108,676.88 and 44,758.27

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Solution

The fourth proportional to 78,744.68, 108,676.88 and 44,758.27 is: 61,771.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,744.68 : 108,676.88 = 44,758.27 : x
  2. Step 2: Convert to fraction form
    78,744.68/108,676.88 = 44,758.27/x
  3. Step 3: Cross multiply
    78,744.68x = 108,676.88 × 44,758.27
  4. Step 4: Simplify right side
    78,744.68x = 4,864,188,914.01
  5. Step 5: Solve for x
    x = 4,864,188,914.01/78,744.68
  6. Step 6: Final answer
    x = 61,771.66

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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.