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Finding the Fourth Proportional to 241,109.20, 361,404.60 and 91,291.60

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Solution

The fourth proportional to 241,109.20, 361,404.60 and 91,291.60 is: 136,839.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,109.20 : 361,404.60 = 91,291.60 : x
  2. Step 2: Convert to fraction form
    241,109.20/361,404.60 = 91,291.60/x
  3. Step 3: Cross multiply
    241,109.20x = 361,404.60 × 91,291.60
  4. Step 4: Simplify right side
    241,109.20x = 32,993,204,181.36
  5. Step 5: Solve for x
    x = 32,993,204,181.36/241,109.20
  6. Step 6: Final answer
    x = 136,839.26

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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.