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Finding the Fourth Proportional to 79,580.73, 109,821.59 and 43,770.03

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Solution

The fourth proportional to 79,580.73, 109,821.59 and 43,770.03 is: 60,402.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,580.73 : 109,821.59 = 43,770.03 : x
  2. Step 2: Convert to fraction form
    79,580.73/109,821.59 = 43,770.03/x
  3. Step 3: Cross multiply
    79,580.73x = 109,821.59 × 43,770.03
  4. Step 4: Simplify right side
    79,580.73x = 4,806,894,288.95
  5. Step 5: Solve for x
    x = 4,806,894,288.95/79,580.73
  6. Step 6: Final answer
    x = 60,402.74

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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.