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Finding the Fourth Proportional to 269,162.40, 403,743.60 and 169,629.60

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Solution

The fourth proportional to 269,162.40, 403,743.60 and 169,629.60 is: 254,444.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,162.40 : 403,743.60 = 169,629.60 : x
  2. Step 2: Convert to fraction form
    269,162.40/403,743.60 = 169,629.60/x
  3. Step 3: Cross multiply
    269,162.40x = 403,743.60 × 169,629.60
  4. Step 4: Simplify right side
    269,162.40x = 68,486,865,370.56
  5. Step 5: Solve for x
    x = 68,486,865,370.56/269,162.40
  6. Step 6: Final answer
    x = 254,444.40

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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.