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Finding the Fourth Proportional to 404,769.80, 607,227.60 and 168,136.40

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Solution

The fourth proportional to 404,769.80, 607,227.60 and 168,136.40 is: 252,234.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,769.80 : 607,227.60 = 168,136.40 : x
  2. Step 2: Convert to fraction form
    404,769.80/607,227.60 = 168,136.40/x
  3. Step 3: Cross multiply
    404,769.80x = 607,227.60 × 168,136.40
  4. Step 4: Simplify right side
    404,769.80x = 102,097,062,644.64
  5. Step 5: Solve for x
    x = 102,097,062,644.64/404,769.80
  6. Step 6: Final answer
    x = 252,234.88

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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.