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Finding the Fourth Proportional to 441,436.90, 662,161.44 and 125,893.75

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Solution

The fourth proportional to 441,436.90, 662,161.44 and 125,893.75 is: 188,842.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,436.90 : 662,161.44 = 125,893.75 : x
  2. Step 2: Convert to fraction form
    441,436.90/662,161.44 = 125,893.75/x
  3. Step 3: Cross multiply
    441,436.90x = 662,161.44 × 125,893.75
  4. Step 4: Simplify right side
    441,436.90x = 83,361,986,787
  5. Step 5: Solve for x
    x = 83,361,986,787/441,436.90
  6. Step 6: Final answer
    x = 188,842.36

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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.