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Finding the Fourth Proportional to 183,765,194.60, 275,647,791.90 and 81,539,565.80

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Solution

The fourth proportional to 183,765,194.60, 275,647,791.90 and 81,539,565.80 is: 122,309,348.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,765,194.60 : 275,647,791.90 = 81,539,565.80 : x
  2. Step 2: Convert to fraction form
    183,765,194.60/275,647,791.90 = 81,539,565.80/x
  3. Step 3: Cross multiply
    183,765,194.60x = 275,647,791.90 × 81,539,565.80
  4. Step 4: Simplify right side
    183,765,194.60x = 22,476,201,265,254,756
  5. Step 5: Solve for x
    x = 22,476,201,265,254,756/183,765,194.60
  6. Step 6: Final answer
    x = 122,309,348.70

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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.