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Finding the Fourth Proportional to 181,912.78, 251,040.01 and 101,343.19

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Solution

The fourth proportional to 181,912.78, 251,040.01 and 101,343.19 is: 139,853.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,912.78 : 251,040.01 = 101,343.19 : x
  2. Step 2: Convert to fraction form
    181,912.78/251,040.01 = 101,343.19/x
  3. Step 3: Cross multiply
    181,912.78x = 251,040.01 × 101,343.19
  4. Step 4: Simplify right side
    181,912.78x = 25,441,194,537.11
  5. Step 5: Solve for x
    x = 25,441,194,537.11/181,912.78
  6. Step 6: Final answer
    x = 139,853.80

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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.