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Finding the Fourth Proportional to 240,578.56, 360,629.70 and 113,995

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Solution

The fourth proportional to 240,578.56, 360,629.70 and 113,995 is: 170,879.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,578.56 : 360,629.70 = 113,995 : x
  2. Step 2: Convert to fraction form
    240,578.56/360,629.70 = 113,995/x
  3. Step 3: Cross multiply
    240,578.56x = 360,629.70 × 113,995
  4. Step 4: Simplify right side
    240,578.56x = 41,109,982,651.50
  5. Step 5: Solve for x
    x = 41,109,982,651.50/240,578.56
  6. Step 6: Final answer
    x = 170,879.66

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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.