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Finding the Fourth Proportional to 449,568.70, 674,266.65 and 134,035.90

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Solution

The fourth proportional to 449,568.70, 674,266.65 and 134,035.90 is: 201,028.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,568.70 : 674,266.65 = 134,035.90 : x
  2. Step 2: Convert to fraction form
    449,568.70/674,266.65 = 134,035.90/x
  3. Step 3: Cross multiply
    449,568.70x = 674,266.65 × 134,035.90
  4. Step 4: Simplify right side
    449,568.70x = 90,375,937,272.74
  5. Step 5: Solve for x
    x = 90,375,937,272.74/449,568.70
  6. Step 6: Final answer
    x = 201,028.09

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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.