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Finding the Fourth Proportional to 79,858.92, 110,190.82 and 49,652.20

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Solution

The fourth proportional to 79,858.92, 110,190.82 and 49,652.20 is: 68,511.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,858.92 : 110,190.82 = 49,652.20 : x
  2. Step 2: Convert to fraction form
    79,858.92/110,190.82 = 49,652.20/x
  3. Step 3: Cross multiply
    79,858.92x = 110,190.82 × 49,652.20
  4. Step 4: Simplify right side
    79,858.92x = 5,471,216,632.80
  5. Step 5: Solve for x
    x = 5,471,216,632.80/79,858.92
  6. Step 6: Final answer
    x = 68,511.03

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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.