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Finding the Fourth Proportional to 191,187.62, 286,819.74 and 107,067.44

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Solution

The fourth proportional to 191,187.62, 286,819.74 and 107,067.44 is: 160,622.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,187.62 : 286,819.74 = 107,067.44 : x
  2. Step 2: Convert to fraction form
    191,187.62/286,819.74 = 107,067.44/x
  3. Step 3: Cross multiply
    191,187.62x = 286,819.74 × 107,067.44
  4. Step 4: Simplify right side
    191,187.62x = 30,709,055,303.27
  5. Step 5: Solve for x
    x = 30,709,055,303.27/191,187.62
  6. Step 6: Final answer
    x = 160,622.61

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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.