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Finding the Fourth Proportional to 191,097.88, 263,833.14 and 123,138.92

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Solution

The fourth proportional to 191,097.88, 263,833.14 and 123,138.92 is: 170,007.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,097.88 : 263,833.14 = 123,138.92 : x
  2. Step 2: Convert to fraction form
    191,097.88/263,833.14 = 123,138.92/x
  3. Step 3: Cross multiply
    191,097.88x = 263,833.14 × 123,138.92
  4. Step 4: Simplify right side
    191,097.88x = 32,488,127,919.81
  5. Step 5: Solve for x
    x = 32,488,127,919.81/191,097.88
  6. Step 6: Final answer
    x = 170,007.79

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1.5x scale

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.