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Finding the Fourth Proportional to 335,081.40, 503,010.90 and 202,111.80

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Solution

The fourth proportional to 335,081.40, 503,010.90 and 202,111.80 is: 303,402.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,081.40 : 503,010.90 = 202,111.80 : x
  2. Step 2: Convert to fraction form
    335,081.40/503,010.90 = 202,111.80/x
  3. Step 3: Cross multiply
    335,081.40x = 503,010.90 × 202,111.80
  4. Step 4: Simplify right side
    335,081.40x = 101,664,438,418.62
  5. Step 5: Solve for x
    x = 101,664,438,418.62/335,081.40
  6. Step 6: Final answer
    x = 303,402.21

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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.