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Finding the Fourth Proportional to 305,821.63, 422,067.41 and 175,011.42

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Solution

The fourth proportional to 305,821.63, 422,067.41 and 175,011.42 is: 241,534.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,821.63 : 422,067.41 = 175,011.42 : x
  2. Step 2: Convert to fraction form
    305,821.63/422,067.41 = 175,011.42/x
  3. Step 3: Cross multiply
    305,821.63x = 422,067.41 × 175,011.42
  4. Step 4: Simplify right side
    305,821.63x = 73,866,616,759.82
  5. Step 5: Solve for x
    x = 73,866,616,759.82/305,821.63
  6. Step 6: Final answer
    x = 241,534.97

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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.