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Finding the Fourth Proportional to 191,104.91, 263,727.91 and 105,067.52

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Solution

The fourth proportional to 191,104.91, 263,727.91 and 105,067.52 is: 144,994.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,104.91 : 263,727.91 = 105,067.52 : x
  2. Step 2: Convert to fraction form
    191,104.91/263,727.91 = 105,067.52/x
  3. Step 3: Cross multiply
    191,104.91x = 263,727.91 × 105,067.52
  4. Step 4: Simplify right side
    191,104.91x = 27,709,237,458.48
  5. Step 5: Solve for x
    x = 27,709,237,458.48/191,104.91
  6. Step 6: Final answer
    x = 144,994.90

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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.