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Finding the Fourth Proportional to 73,350.70, 110,030.28 and 20,755.78

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Solution

The fourth proportional to 73,350.70, 110,030.28 and 20,755.78 is: 31,134.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,350.70 : 110,030.28 = 20,755.78 : x
  2. Step 2: Convert to fraction form
    73,350.70/110,030.28 = 20,755.78/x
  3. Step 3: Cross multiply
    73,350.70x = 110,030.28 × 20,755.78
  4. Step 4: Simplify right side
    73,350.70x = 2,283,764,285.02
  5. Step 5: Solve for x
    x = 2,283,764,285.02/73,350.70
  6. Step 6: Final answer
    x = 31,134.87

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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.