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Finding the Fourth Proportional to 335,408.49, 503,116.24 and 98,755.65

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Solution

The fourth proportional to 335,408.49, 503,116.24 and 98,755.65 is: 148,134.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,408.49 : 503,116.24 = 98,755.65 : x
  2. Step 2: Convert to fraction form
    335,408.49/503,116.24 = 98,755.65/x
  3. Step 3: Cross multiply
    335,408.49x = 503,116.24 × 98,755.65
  4. Step 4: Simplify right side
    335,408.49x = 49,685,568,791.17
  5. Step 5: Solve for x
    x = 49,685,568,791.17/335,408.49
  6. Step 6: Final answer
    x = 148,134.50

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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.