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Finding the Fourth Proportional to 79,766.66, 110,078.73 and 43,957.96

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Solution

The fourth proportional to 79,766.66, 110,078.73 and 43,957.96 is: 60,662.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,766.66 : 110,078.73 = 43,957.96 : x
  2. Step 2: Convert to fraction form
    79,766.66/110,078.73 = 43,957.96/x
  3. Step 3: Cross multiply
    79,766.66x = 110,078.73 × 43,957.96
  4. Step 4: Simplify right side
    79,766.66x = 4,838,835,859.80
  5. Step 5: Solve for x
    x = 4,838,835,859.80/79,766.66
  6. Step 6: Final answer
    x = 60,662.39

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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.