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Finding the Fourth Proportional to 269,242.83, 403,912.28 and 89,339.07

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Solution

The fourth proportional to 269,242.83, 403,912.28 and 89,339.07 is: 134,024.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,242.83 : 403,912.28 = 89,339.07 : x
  2. Step 2: Convert to fraction form
    269,242.83/403,912.28 = 89,339.07/x
  3. Step 3: Cross multiply
    269,242.83x = 403,912.28 × 89,339.07
  4. Step 4: Simplify right side
    269,242.83x = 36,085,147,456.78
  5. Step 5: Solve for x
    x = 36,085,147,456.78/269,242.83
  6. Step 6: Final answer
    x = 134,024.54

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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.