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Finding the Fourth Proportional to 625,892.26, 938,969.07 and 205,135.06

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Solution

The fourth proportional to 625,892.26, 938,969.07 and 205,135.06 is: 307,745.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,892.26 : 938,969.07 = 205,135.06 : x
  2. Step 2: Convert to fraction form
    625,892.26/938,969.07 = 205,135.06/x
  3. Step 3: Cross multiply
    625,892.26x = 938,969.07 × 205,135.06
  4. Step 4: Simplify right side
    625,892.26x = 192,615,476,512.59
  5. Step 5: Solve for x
    x = 192,615,476,512.59/625,892.26
  6. Step 6: Final answer
    x = 307,745.42

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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.