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Finding the Fourth Proportional to 181,918.67, 251,047.91 and 101,346.39

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Solution

The fourth proportional to 181,918.67, 251,047.91 and 101,346.39 is: 139,858.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,918.67 : 251,047.91 = 101,346.39 : x
  2. Step 2: Convert to fraction form
    181,918.67/251,047.91 = 101,346.39/x
  3. Step 3: Cross multiply
    181,918.67x = 251,047.91 × 101,346.39
  4. Step 4: Simplify right side
    181,918.67x = 25,442,797,633.57
  5. Step 5: Solve for x
    x = 25,442,797,633.57/181,918.67
  6. Step 6: Final answer
    x = 139,858.09

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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.