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Finding the Fourth Proportional to 335,218.20, 502,851.60 and 201,811.20

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Solution

The fourth proportional to 335,218.20, 502,851.60 and 201,811.20 is: 302,731.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,218.20 : 502,851.60 = 201,811.20 : x
  2. Step 2: Convert to fraction form
    335,218.20/502,851.60 = 201,811.20/x
  3. Step 3: Cross multiply
    335,218.20x = 502,851.60 × 201,811.20
  4. Step 4: Simplify right side
    335,218.20x = 101,481,084,817.92
  5. Step 5: Solve for x
    x = 101,481,084,817.92/335,218.20
  6. Step 6: Final answer
    x = 302,731.43

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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.