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Finding the Fourth Proportional to 191,036.63, 286,161.15 and 111,910.97

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Solution

The fourth proportional to 191,036.63, 286,161.15 and 111,910.97 is: 167,635.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,036.63 : 286,161.15 = 111,910.97 : x
  2. Step 2: Convert to fraction form
    191,036.63/286,161.15 = 111,910.97/x
  3. Step 3: Cross multiply
    191,036.63x = 286,161.15 × 111,910.97
  4. Step 4: Simplify right side
    191,036.63x = 32,024,571,872.82
  5. Step 5: Solve for x
    x = 32,024,571,872.82/191,036.63
  6. Step 6: Final answer
    x = 167,635.77

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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.