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Finding the Fourth Proportional to 79,772.72, 110,081.14 and 43,962.74

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Solution

The fourth proportional to 79,772.72, 110,081.14 and 43,962.74 is: 60,665.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,772.72 : 110,081.14 = 43,962.74 : x
  2. Step 2: Convert to fraction form
    79,772.72/110,081.14 = 43,962.74/x
  3. Step 3: Cross multiply
    79,772.72x = 110,081.14 × 43,962.74
  4. Step 4: Simplify right side
    79,772.72x = 4,839,468,536.72
  5. Step 5: Solve for x
    x = 4,839,468,536.72/79,772.72
  6. Step 6: Final answer
    x = 60,665.71

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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.