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Finding the Fourth Proportional to 79,984.60, 110,377.83 and 43,685.87

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Solution

The fourth proportional to 79,984.60, 110,377.83 and 43,685.87 is: 60,286.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,984.60 : 110,377.83 = 43,685.87 : x
  2. Step 2: Convert to fraction form
    79,984.60/110,377.83 = 43,685.87/x
  3. Step 3: Cross multiply
    79,984.60x = 110,377.83 × 43,685.87
  4. Step 4: Simplify right side
    79,984.60x = 4,821,951,532.26
  5. Step 5: Solve for x
    x = 4,821,951,532.26/79,984.60
  6. Step 6: Final answer
    x = 60,286.00

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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.