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Finding the Fourth Proportional to 204,868.68, 307,299.96 and 124,930.14

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Solution

The fourth proportional to 204,868.68, 307,299.96 and 124,930.14 is: 187,393.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,868.68 : 307,299.96 = 124,930.14 : x
  2. Step 2: Convert to fraction form
    204,868.68/307,299.96 = 124,930.14/x
  3. Step 3: Cross multiply
    204,868.68x = 307,299.96 × 124,930.14
  4. Step 4: Simplify right side
    204,868.68x = 38,391,027,024.79
  5. Step 5: Solve for x
    x = 38,391,027,024.79/204,868.68
  6. Step 6: Final answer
    x = 187,393.34

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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.