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Finding the Fourth Proportional to 363,963.75, 502,126.77 and 243,183.93

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Solution

The fourth proportional to 363,963.75, 502,126.77 and 243,183.93 is: 335,498.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,963.75 : 502,126.77 = 243,183.93 : x
  2. Step 2: Convert to fraction form
    363,963.75/502,126.77 = 243,183.93/x
  3. Step 3: Cross multiply
    363,963.75x = 502,126.77 × 243,183.93
  4. Step 4: Simplify right side
    363,963.75x = 122,109,161,286.81
  5. Step 5: Solve for x
    x = 122,109,161,286.81/363,963.75
  6. Step 6: Final answer
    x = 335,498.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.