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Finding the Fourth Proportional to 441,990.40, 663,034.20 and 161,568.40

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Solution

The fourth proportional to 441,990.40, 663,034.20 and 161,568.40 is: 242,370.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,990.40 : 663,034.20 = 161,568.40 : x
  2. Step 2: Convert to fraction form
    441,990.40/663,034.20 = 161,568.40/x
  3. Step 3: Cross multiply
    441,990.40x = 663,034.20 × 161,568.40
  4. Step 4: Simplify right side
    441,990.40x = 107,125,374,839.28
  5. Step 5: Solve for x
    x = 107,125,374,839.28/441,990.40
  6. Step 6: Final answer
    x = 242,370.37

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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.