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Finding the Fourth Proportional to 269,774.90, 404,895.60 and 103,679.54

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Solution

The fourth proportional to 269,774.90, 404,895.60 and 103,679.54 is: 155,608.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,774.90 : 404,895.60 = 103,679.54 : x
  2. Step 2: Convert to fraction form
    269,774.90/404,895.60 = 103,679.54/x
  3. Step 3: Cross multiply
    269,774.90x = 404,895.60 × 103,679.54
  4. Step 4: Simplify right side
    269,774.90x = 41,979,389,556.02
  5. Step 5: Solve for x
    x = 41,979,389,556.02/269,774.90
  6. Step 6: Final answer
    x = 155,608.95

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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.