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Finding the Fourth Proportional to 202,287.90, 303,759.90 and 136,021.80

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Solution

The fourth proportional to 202,287.90, 303,759.90 and 136,021.80 is: 204,253.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,287.90 : 303,759.90 = 136,021.80 : x
  2. Step 2: Convert to fraction form
    202,287.90/303,759.90 = 136,021.80/x
  3. Step 3: Cross multiply
    202,287.90x = 303,759.90 × 136,021.80
  4. Step 4: Simplify right side
    202,287.90x = 41,317,968,365.82
  5. Step 5: Solve for x
    x = 41,317,968,365.82/202,287.90
  6. Step 6: Final answer
    x = 204,253.29

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1.5x scale

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.