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Finding the Fourth Proportional to 271,169.78, 374,094.55 and 190,649.90

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Solution

The fourth proportional to 271,169.78, 374,094.55 and 190,649.90 is: 263,012.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,169.78 : 374,094.55 = 190,649.90 : x
  2. Step 2: Convert to fraction form
    271,169.78/374,094.55 = 190,649.90/x
  3. Step 3: Cross multiply
    271,169.78x = 374,094.55 × 190,649.90
  4. Step 4: Simplify right side
    271,169.78x = 71,321,089,721.59
  5. Step 5: Solve for x
    x = 71,321,089,721.59/271,169.78
  6. Step 6: Final answer
    x = 263,012.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.