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Finding the Fourth Proportional to 202,708.20, 304,127.10 and 69,673.80

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Solution

The fourth proportional to 202,708.20, 304,127.10 and 69,673.80 is: 104,532.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,708.20 : 304,127.10 = 69,673.80 : x
  2. Step 2: Convert to fraction form
    202,708.20/304,127.10 = 69,673.80/x
  3. Step 3: Cross multiply
    202,708.20x = 304,127.10 × 69,673.80
  4. Step 4: Simplify right side
    202,708.20x = 21,189,690,739.98
  5. Step 5: Solve for x
    x = 21,189,690,739.98/202,708.20
  6. Step 6: Final answer
    x = 104,532.97

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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.