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Finding the Fourth Proportional to 79,100.25, 118,651.86 and 36,968.79

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Solution

The fourth proportional to 79,100.25, 118,651.86 and 36,968.79 is: 55,453.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,100.25 : 118,651.86 = 36,968.79 : x
  2. Step 2: Convert to fraction form
    79,100.25/118,651.86 = 36,968.79/x
  3. Step 3: Cross multiply
    79,100.25x = 118,651.86 × 36,968.79
  4. Step 4: Simplify right side
    79,100.25x = 4,386,415,695.45
  5. Step 5: Solve for x
    x = 4,386,415,695.45/79,100.25
  6. Step 6: Final answer
    x = 55,453.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.