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Finding the Fourth Proportional to 79,462.41, 109,664.87 and 43,659.60

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Solution

The fourth proportional to 79,462.41, 109,664.87 and 43,659.60 is: 60,253.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,462.41 : 109,664.87 = 43,659.60 : x
  2. Step 2: Convert to fraction form
    79,462.41/109,664.87 = 43,659.60/x
  3. Step 3: Cross multiply
    79,462.41x = 109,664.87 × 43,659.60
  4. Step 4: Simplify right side
    79,462.41x = 4,787,924,139.95
  5. Step 5: Solve for x
    x = 4,787,924,139.95/79,462.41
  6. Step 6: Final answer
    x = 60,253.95

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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.