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Finding the Fourth Proportional to 78,924.27, 108,913.71 and 43,114.44

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Solution

The fourth proportional to 78,924.27, 108,913.71 and 43,114.44 is: 59,496.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,924.27 : 108,913.71 = 43,114.44 : x
  2. Step 2: Convert to fraction form
    78,924.27/108,913.71 = 43,114.44/x
  3. Step 3: Cross multiply
    78,924.27x = 108,913.71 × 43,114.44
  4. Step 4: Simplify right side
    78,924.27x = 4,695,753,614.97
  5. Step 5: Solve for x
    x = 4,695,753,614.97/78,924.27
  6. Step 6: Final answer
    x = 59,496.95

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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.