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Finding the Fourth Proportional to 335,090.40, 503,024.40 and 202,120.80

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Solution

The fourth proportional to 335,090.40, 503,024.40 and 202,120.80 is: 303,415.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,090.40 : 503,024.40 = 202,120.80 : x
  2. Step 2: Convert to fraction form
    335,090.40/503,024.40 = 202,120.80/x
  3. Step 3: Cross multiply
    335,090.40x = 503,024.40 × 202,120.80
  4. Step 4: Simplify right side
    335,090.40x = 101,671,694,147.52
  5. Step 5: Solve for x
    x = 101,671,694,147.52/335,090.40
  6. Step 6: Final answer
    x = 303,415.72

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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.