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Finding the Fourth Proportional to 181,693.38, 250,715.94 and 105,213.98

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Solution

The fourth proportional to 181,693.38, 250,715.94 and 105,213.98 is: 145,183.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,693.38 : 250,715.94 = 105,213.98 : x
  2. Step 2: Convert to fraction form
    181,693.38/250,715.94 = 105,213.98/x
  3. Step 3: Cross multiply
    181,693.38x = 250,715.94 × 105,213.98
  4. Step 4: Simplify right side
    181,693.38x = 26,378,821,896.84
  5. Step 5: Solve for x
    x = 26,378,821,896.84/181,693.38
  6. Step 6: Final answer
    x = 145,183.18

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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.