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Finding the Fourth Proportional to 404,551.20, 606,972.60 and 168,063.60

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Solution

The fourth proportional to 404,551.20, 606,972.60 and 168,063.60 is: 252,155.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,551.20 : 606,972.60 = 168,063.60 : x
  2. Step 2: Convert to fraction form
    404,551.20/606,972.60 = 168,063.60/x
  3. Step 3: Cross multiply
    404,551.20x = 606,972.60 × 168,063.60
  4. Step 4: Simplify right side
    404,551.20x = 102,010,000,257.36
  5. Step 5: Solve for x
    x = 102,010,000,257.36/404,551.20
  6. Step 6: Final answer
    x = 252,155.97

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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.