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Finding the Fourth Proportional to 202,228.90, 303,379.80 and 83,912.20

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Solution

The fourth proportional to 202,228.90, 303,379.80 and 83,912.20 is: 125,883.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,228.90 : 303,379.80 = 83,912.20 : x
  2. Step 2: Convert to fraction form
    202,228.90/303,379.80 = 83,912.20/x
  3. Step 3: Cross multiply
    202,228.90x = 303,379.80 × 83,912.20
  4. Step 4: Simplify right side
    202,228.90x = 25,457,266,453.56
  5. Step 5: Solve for x
    x = 25,457,266,453.56/202,228.90
  6. Step 6: Final answer
    x = 125,883.42

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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.