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Finding the Fourth Proportional to 235,667.67, 353,556.86 and 77,896.12

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Solution

The fourth proportional to 235,667.67, 353,556.86 and 77,896.12 is: 116,862.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,667.67 : 353,556.86 = 77,896.12 : x
  2. Step 2: Convert to fraction form
    235,667.67/353,556.86 = 77,896.12/x
  3. Step 3: Cross multiply
    235,667.67x = 353,556.86 × 77,896.12
  4. Step 4: Simplify right side
    235,667.67x = 27,540,707,593.38
  5. Step 5: Solve for x
    x = 27,540,707,593.38/235,667.67
  6. Step 6: Final answer
    x = 116,862.48

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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.