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Finding the Fourth Proportional to 419,516.59, 628,853.53 and 134,998.04

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Solution

The fourth proportional to 419,516.59, 628,853.53 and 134,998.04 is: 202,361.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,516.59 : 628,853.53 = 134,998.04 : x
  2. Step 2: Convert to fraction form
    419,516.59/628,853.53 = 134,998.04/x
  3. Step 3: Cross multiply
    419,516.59x = 628,853.53 × 134,998.04
  4. Step 4: Simplify right side
    419,516.59x = 84,893,993,997.08
  5. Step 5: Solve for x
    x = 84,893,993,997.08/419,516.59
  6. Step 6: Final answer
    x = 202,361.47

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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.