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Finding the Fourth Proportional to 149,753.80, 206,593.94 and 101,338.52

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Solution

The fourth proportional to 149,753.80, 206,593.94 and 101,338.52 is: 139,802.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,753.80 : 206,593.94 = 101,338.52 : x
  2. Step 2: Convert to fraction form
    149,753.80/206,593.94 = 101,338.52/x
  3. Step 3: Cross multiply
    149,753.80x = 206,593.94 × 101,338.52
  4. Step 4: Simplify right side
    149,753.80x = 20,935,924,120.57
  5. Step 5: Solve for x
    x = 20,935,924,120.57/149,753.80
  6. Step 6: Final answer
    x = 139,802.29

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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.