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Finding the Fourth Proportional to 80,698.69, 121,067.48 and 25,294.69

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Solution

The fourth proportional to 80,698.69, 121,067.48 and 25,294.69 is: 37,948.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,698.69 : 121,067.48 = 25,294.69 : x
  2. Step 2: Convert to fraction form
    80,698.69/121,067.48 = 25,294.69/x
  3. Step 3: Cross multiply
    80,698.69x = 121,067.48 × 25,294.69
  4. Step 4: Simplify right side
    80,698.69x = 3,062,363,946.54
  5. Step 5: Solve for x
    x = 3,062,363,946.54/80,698.69
  6. Step 6: Final answer
    x = 37,948.13

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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.