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Finding the Fourth Proportional to 78,245.82, 107,977.57 and 44,249.83

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Solution

The fourth proportional to 78,245.82, 107,977.57 and 44,249.83 is: 61,063.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,245.82 : 107,977.57 = 44,249.83 : x
  2. Step 2: Convert to fraction form
    78,245.82/107,977.57 = 44,249.83/x
  3. Step 3: Cross multiply
    78,245.82x = 107,977.57 × 44,249.83
  4. Step 4: Simplify right side
    78,245.82x = 4,777,988,735.74
  5. Step 5: Solve for x
    x = 4,777,988,735.74/78,245.82
  6. Step 6: Final answer
    x = 61,063.82

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1.5x scale

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.