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Finding the Fourth Proportional to 202,208.90, 303,349.80 and 83,892.20

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Solution

The fourth proportional to 202,208.90, 303,349.80 and 83,892.20 is: 125,853.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,208.90 : 303,349.80 = 83,892.20 : x
  2. Step 2: Convert to fraction form
    202,208.90/303,349.80 = 83,892.20/x
  3. Step 3: Cross multiply
    202,208.90x = 303,349.80 × 83,892.20
  4. Step 4: Simplify right side
    202,208.90x = 25,448,682,091.56
  5. Step 5: Solve for x
    x = 25,448,682,091.56/202,208.90
  6. Step 6: Final answer
    x = 125,853.42

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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.