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Finding the Fourth Proportional to 290,891.60, 401,256.36 and 177,517.52

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Solution

The fourth proportional to 290,891.60, 401,256.36 and 177,517.52 is: 244,867.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,891.60 : 401,256.36 = 177,517.52 : x
  2. Step 2: Convert to fraction form
    290,891.60/401,256.36 = 177,517.52/x
  3. Step 3: Cross multiply
    290,891.60x = 401,256.36 × 177,517.52
  4. Step 4: Simplify right side
    290,891.60x = 71,230,033,911.43
  5. Step 5: Solve for x
    x = 71,230,033,911.43/290,891.60
  6. Step 6: Final answer
    x = 244,867.96

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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.