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Finding the Fourth Proportional to 202,034.90, 303,023.55 and 68,921.30

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Solution

The fourth proportional to 202,034.90, 303,023.55 and 68,921.30 is: 103,372.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,034.90 : 303,023.55 = 68,921.30 : x
  2. Step 2: Convert to fraction form
    202,034.90/303,023.55 = 68,921.30/x
  3. Step 3: Cross multiply
    202,034.90x = 303,023.55 × 68,921.30
  4. Step 4: Simplify right side
    202,034.90x = 20,884,776,996.62
  5. Step 5: Solve for x
    x = 20,884,776,996.62/202,034.90
  6. Step 6: Final answer
    x = 103,372.13

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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.