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Finding the Fourth Proportional to 207,293.31, 310,998.29 and 74,192.49

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Solution

The fourth proportional to 207,293.31, 310,998.29 and 74,192.49 is: 111,309.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,293.31 : 310,998.29 = 74,192.49 : x
  2. Step 2: Convert to fraction form
    207,293.31/310,998.29 = 74,192.49/x
  3. Step 3: Cross multiply
    207,293.31x = 310,998.29 × 74,192.49
  4. Step 4: Simplify right side
    207,293.31x = 23,073,737,149.88
  5. Step 5: Solve for x
    x = 23,073,737,149.88/207,293.31
  6. Step 6: Final answer
    x = 111,309.61

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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.