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Finding the Fourth Proportional to 654,391.65, 981,609.32 and 181,037.37

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Solution

The fourth proportional to 654,391.65, 981,609.32 and 181,037.37 is: 271,562.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,391.65 : 981,609.32 = 181,037.37 : x
  2. Step 2: Convert to fraction form
    654,391.65/981,609.32 = 181,037.37/x
  3. Step 3: Cross multiply
    654,391.65x = 981,609.32 × 181,037.37
  4. Step 4: Simplify right side
    654,391.65x = 177,707,968,755.10
  5. Step 5: Solve for x
    x = 177,707,968,755.10/654,391.65
  6. Step 6: Final answer
    x = 271,562.10

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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.