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Finding the Fourth Proportional to 57,778.77, 79,743.86 and 35,124.87

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Solution

The fourth proportional to 57,778.77, 79,743.86 and 35,124.87 is: 48,477.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,778.77 : 79,743.86 = 35,124.87 : x
  2. Step 2: Convert to fraction form
    57,778.77/79,743.86 = 35,124.87/x
  3. Step 3: Cross multiply
    57,778.77x = 79,743.86 × 35,124.87
  4. Step 4: Simplify right side
    57,778.77x = 2,800,992,540.17
  5. Step 5: Solve for x
    x = 2,800,992,540.17/57,778.77
  6. Step 6: Final answer
    x = 48,477.88

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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.