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Finding the Fourth Proportional to 419,874.58, 629,812.33 and 104,331.49

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Solution

The fourth proportional to 419,874.58, 629,812.33 and 104,331.49 is: 156,497.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,874.58 : 629,812.33 = 104,331.49 : x
  2. Step 2: Convert to fraction form
    419,874.58/629,812.33 = 104,331.49/x
  3. Step 3: Cross multiply
    419,874.58x = 629,812.33 × 104,331.49
  4. Step 4: Simplify right side
    419,874.58x = 65,709,258,809.27
  5. Step 5: Solve for x
    x = 65,709,258,809.27/419,874.58
  6. Step 6: Final answer
    x = 156,497.35

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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.