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Finding the Fourth Proportional to 449,020.56, 673,641.72 and 133,476.12

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Solution

The fourth proportional to 449,020.56, 673,641.72 and 133,476.12 is: 200,247.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,020.56 : 673,641.72 = 133,476.12 : x
  2. Step 2: Convert to fraction form
    449,020.56/673,641.72 = 133,476.12/x
  3. Step 3: Cross multiply
    449,020.56x = 673,641.72 × 133,476.12
  4. Step 4: Simplify right side
    449,020.56x = 89,915,083,055.73
  5. Step 5: Solve for x
    x = 89,915,083,055.73/449,020.56
  6. Step 6: Final answer
    x = 200,247.14

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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.