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Finding the Fourth Proportional to 418,874.22, 628,297.98 and 134,563.62

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Solution

The fourth proportional to 418,874.22, 628,297.98 and 134,563.62 is: 201,841.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,874.22 : 628,297.98 = 134,563.62 : x
  2. Step 2: Convert to fraction form
    418,874.22/628,297.98 = 134,563.62/x
  3. Step 3: Cross multiply
    418,874.22x = 628,297.98 × 134,563.62
  4. Step 4: Simplify right side
    418,874.22x = 84,546,050,627.49
  5. Step 5: Solve for x
    x = 84,546,050,627.49/418,874.22
  6. Step 6: Final answer
    x = 201,841.14

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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.