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Finding the Fourth Proportional to 303,991.11, 419,508.18 and 183,137.49

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Solution

The fourth proportional to 303,991.11, 419,508.18 and 183,137.49 is: 252,730.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,991.11 : 419,508.18 = 183,137.49 : x
  2. Step 2: Convert to fraction form
    303,991.11/419,508.18 = 183,137.49/x
  3. Step 3: Cross multiply
    303,991.11x = 419,508.18 × 183,137.49
  4. Step 4: Simplify right side
    303,991.11x = 76,827,675,119.67
  5. Step 5: Solve for x
    x = 76,827,675,119.67/303,991.11
  6. Step 6: Final answer
    x = 252,730.01

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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.