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Finding the Fourth Proportional to 171,380.23, 257,067.59 and 46,721.23

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Solution

The fourth proportional to 171,380.23, 257,067.59 and 46,721.23 is: 70,081.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,380.23 : 257,067.59 = 46,721.23 : x
  2. Step 2: Convert to fraction form
    171,380.23/257,067.59 = 46,721.23/x
  3. Step 3: Cross multiply
    171,380.23x = 257,067.59 × 46,721.23
  4. Step 4: Simplify right side
    171,380.23x = 12,010,513,997.94
  5. Step 5: Solve for x
    x = 12,010,513,997.94/171,380.23
  6. Step 6: Final answer
    x = 70,081.09

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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.