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Finding the Fourth Proportional to 191,704.70, 264,572.17 and 115,248.54

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Solution

The fourth proportional to 191,704.70, 264,572.17 and 115,248.54 is: 159,054.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,704.70 : 264,572.17 = 115,248.54 : x
  2. Step 2: Convert to fraction form
    191,704.70/264,572.17 = 115,248.54/x
  3. Step 3: Cross multiply
    191,704.70x = 264,572.17 × 115,248.54
  4. Step 4: Simplify right side
    191,704.70x = 30,491,557,021.16
  5. Step 5: Solve for x
    x = 30,491,557,021.16/191,704.70
  6. Step 6: Final answer
    x = 159,054.83

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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.