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Finding the Fourth Proportional to 202,417.40, 303,383.10 and 84,027.80

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Solution

The fourth proportional to 202,417.40, 303,383.10 and 84,027.80 is: 125,940.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,417.40 : 303,383.10 = 84,027.80 : x
  2. Step 2: Convert to fraction form
    202,417.40/303,383.10 = 84,027.80/x
  3. Step 3: Cross multiply
    202,417.40x = 303,383.10 × 84,027.80
  4. Step 4: Simplify right side
    202,417.40x = 25,492,614,450.18
  5. Step 5: Solve for x
    x = 25,492,614,450.18/202,417.40
  6. Step 6: Final answer
    x = 125,940.83

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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.