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Finding the Fourth Proportional to 482,696.92, 724,162.42 and 145,717.44

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Solution

The fourth proportional to 482,696.92, 724,162.42 and 145,717.44 is: 218,611.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,696.92 : 724,162.42 = 145,717.44 : x
  2. Step 2: Convert to fraction form
    482,696.92/724,162.42 = 145,717.44/x
  3. Step 3: Cross multiply
    482,696.92x = 724,162.42 × 145,717.44
  4. Step 4: Simplify right side
    482,696.92x = 105,523,093,986.61
  5. Step 5: Solve for x
    x = 105,523,093,986.61/482,696.92
  6. Step 6: Final answer
    x = 218,611.49

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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.