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Finding the Fourth Proportional to 202,209.40, 303,314.10 and 170,716.60

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Solution

The fourth proportional to 202,209.40, 303,314.10 and 170,716.60 is: 256,074.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,209.40 : 303,314.10 = 170,716.60 : x
  2. Step 2: Convert to fraction form
    202,209.40/303,314.10 = 170,716.60/x
  3. Step 3: Cross multiply
    202,209.40x = 303,314.10 × 170,716.60
  4. Step 4: Simplify right side
    202,209.40x = 51,780,751,884.06
  5. Step 5: Solve for x
    x = 51,780,751,884.06/202,209.40
  6. Step 6: Final answer
    x = 256,074.90

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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.