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Finding the Fourth Proportional to 79,258.74, 109,377.84 and 43,449.48

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Solution

The fourth proportional to 79,258.74, 109,377.84 and 43,449.48 is: 59,960.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,258.74 : 109,377.84 = 43,449.48 : x
  2. Step 2: Convert to fraction form
    79,258.74/109,377.84 = 43,449.48/x
  3. Step 3: Cross multiply
    79,258.74x = 109,377.84 × 43,449.48
  4. Step 4: Simplify right side
    79,258.74x = 4,752,410,271.52
  5. Step 5: Solve for x
    x = 4,752,410,271.52/79,258.74
  6. Step 6: Final answer
    x = 59,960.71

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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.