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Finding the Fourth Proportional to 260,718.69, 359,791.79 and 141,486.69

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Solution

The fourth proportional to 260,718.69, 359,791.79 and 141,486.69 is: 195,251.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,718.69 : 359,791.79 = 141,486.69 : x
  2. Step 2: Convert to fraction form
    260,718.69/359,791.79 = 141,486.69/x
  3. Step 3: Cross multiply
    260,718.69x = 359,791.79 × 141,486.69
  4. Step 4: Simplify right side
    260,718.69x = 50,905,749,456.28
  5. Step 5: Solve for x
    x = 50,905,749,456.28/260,718.69
  6. Step 6: Final answer
    x = 195,251.63

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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.