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Finding the Fourth Proportional to 193,351.60, 290,718.60 and 162,938.80

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Solution

The fourth proportional to 193,351.60, 290,718.60 and 162,938.80 is: 244,990.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,351.60 : 290,718.60 = 162,938.80 : x
  2. Step 2: Convert to fraction form
    193,351.60/290,718.60 = 162,938.80/x
  3. Step 3: Cross multiply
    193,351.60x = 290,718.60 × 162,938.80
  4. Step 4: Simplify right side
    193,351.60x = 47,369,339,821.68
  5. Step 5: Solve for x
    x = 47,369,339,821.68/193,351.60
  6. Step 6: Final answer
    x = 244,990.68

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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.