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Finding the Fourth Proportional to 79,776.45, 110,093.81 and 43,968.78

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Solution

The fourth proportional to 79,776.45, 110,093.81 and 43,968.78 is: 60,678.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,776.45 : 110,093.81 = 43,968.78 : x
  2. Step 2: Convert to fraction form
    79,776.45/110,093.81 = 43,968.78/x
  3. Step 3: Cross multiply
    79,776.45x = 110,093.81 × 43,968.78
  4. Step 4: Simplify right side
    79,776.45x = 4,840,690,291.41
  5. Step 5: Solve for x
    x = 4,840,690,291.41/79,776.45
  6. Step 6: Final answer
    x = 60,678.19

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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.