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Finding the Fourth Proportional to 191,809.62, 264,711.71 and 111,236.49

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Solution

The fourth proportional to 191,809.62, 264,711.71 and 111,236.49 is: 153,514.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,809.62 : 264,711.71 = 111,236.49 : x
  2. Step 2: Convert to fraction form
    191,809.62/264,711.71 = 111,236.49/x
  3. Step 3: Cross multiply
    191,809.62x = 264,711.71 × 111,236.49
  4. Step 4: Simplify right side
    191,809.62x = 29,445,601,760.39
  5. Step 5: Solve for x
    x = 29,445,601,760.39/191,809.62
  6. Step 6: Final answer
    x = 153,514.73

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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.