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Finding the Fourth Proportional to 79,755.98, 119,634.12 and 74,884.41

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Solution

The fourth proportional to 79,755.98, 119,634.12 and 74,884.41 is: 112,326.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,755.98 : 119,634.12 = 74,884.41 : x
  2. Step 2: Convert to fraction form
    79,755.98/119,634.12 = 74,884.41/x
  3. Step 3: Cross multiply
    79,755.98x = 119,634.12 × 74,884.41
  4. Step 4: Simplify right side
    79,755.98x = 8,958,730,492.07
  5. Step 5: Solve for x
    x = 8,958,730,492.07/79,755.98
  6. Step 6: Final answer
    x = 112,326.76

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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.