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Finding the Fourth Proportional to 325,671.84, 489,256.20 and 231,136.74

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Solution

The fourth proportional to 325,671.84, 489,256.20 and 231,136.74 is: 347,236.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,671.84 : 489,256.20 = 231,136.74 : x
  2. Step 2: Convert to fraction form
    325,671.84/489,256.20 = 231,136.74/x
  3. Step 3: Cross multiply
    325,671.84x = 489,256.20 × 231,136.74
  4. Step 4: Simplify right side
    325,671.84x = 113,085,083,092.79
  5. Step 5: Solve for x
    x = 113,085,083,092.79/325,671.84
  6. Step 6: Final answer
    x = 347,236.29

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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.