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Finding the Fourth Proportional to 79,081.44, 109,160.04 and 48,889.92

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Solution

The fourth proportional to 79,081.44, 109,160.04 and 48,889.92 is: 67,485.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,081.44 : 109,160.04 = 48,889.92 : x
  2. Step 2: Convert to fraction form
    79,081.44/109,160.04 = 48,889.92/x
  3. Step 3: Cross multiply
    79,081.44x = 109,160.04 × 48,889.92
  4. Step 4: Simplify right side
    79,081.44x = 5,336,825,622.80
  5. Step 5: Solve for x
    x = 5,336,825,622.80/79,081.44
  6. Step 6: Final answer
    x = 67,485.19

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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.