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Finding the Fourth Proportional to 216,749.01, 325,151.21 and 83,667.33

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Solution

The fourth proportional to 216,749.01, 325,151.21 and 83,667.33 is: 125,511.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,749.01 : 325,151.21 = 83,667.33 : x
  2. Step 2: Convert to fraction form
    216,749.01/325,151.21 = 83,667.33/x
  3. Step 3: Cross multiply
    216,749.01x = 325,151.21 × 83,667.33
  4. Step 4: Simplify right side
    216,749.01x = 27,204,531,542.88
  5. Step 5: Solve for x
    x = 27,204,531,542.88/216,749.01
  6. Step 6: Final answer
    x = 125,511.68

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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.