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Finding the Fourth Proportional to 339,290.51, 468,278.49 and 196,133.54

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Solution

The fourth proportional to 339,290.51, 468,278.49 and 196,133.54 is: 270,697.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,290.51 : 468,278.49 = 196,133.54 : x
  2. Step 2: Convert to fraction form
    339,290.51/468,278.49 = 196,133.54/x
  3. Step 3: Cross multiply
    339,290.51x = 468,278.49 × 196,133.54
  4. Step 4: Simplify right side
    339,290.51x = 91,845,117,949.55
  5. Step 5: Solve for x
    x = 91,845,117,949.55/339,290.51
  6. Step 6: Final answer
    x = 270,697.57

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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.