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Finding the Fourth Proportional to 304,028.98, 419,553.81 and 168,068.66

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Solution

The fourth proportional to 304,028.98, 419,553.81 and 168,068.66 is: 231,931.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,028.98 : 419,553.81 = 168,068.66 : x
  2. Step 2: Convert to fraction form
    304,028.98/419,553.81 = 168,068.66/x
  3. Step 3: Cross multiply
    304,028.98x = 419,553.81 × 168,068.66
  4. Step 4: Simplify right side
    304,028.98x = 70,513,844,546.83
  5. Step 5: Solve for x
    x = 70,513,844,546.83/304,028.98
  6. Step 6: Final answer
    x = 231,931.33

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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.