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Finding the Fourth Proportional to 74,680.35, 103,096.98 and 50,608.49

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Solution

The fourth proportional to 74,680.35, 103,096.98 and 50,608.49 is: 69,865.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,680.35 : 103,096.98 = 50,608.49 : x
  2. Step 2: Convert to fraction form
    74,680.35/103,096.98 = 50,608.49/x
  3. Step 3: Cross multiply
    74,680.35x = 103,096.98 × 50,608.49
  4. Step 4: Simplify right side
    74,680.35x = 5,217,581,965.88
  5. Step 5: Solve for x
    x = 5,217,581,965.88/74,680.35
  6. Step 6: Final answer
    x = 69,865.53

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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.