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Finding the Fourth Proportional to 325,813.01, 449,621.94 and 198,488.51

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Solution

The fourth proportional to 325,813.01, 449,621.94 and 198,488.51 is: 273,914.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,813.01 : 449,621.94 = 198,488.51 : x
  2. Step 2: Convert to fraction form
    325,813.01/449,621.94 = 198,488.51/x
  3. Step 3: Cross multiply
    325,813.01x = 449,621.94 × 198,488.51
  4. Step 4: Simplify right side
    325,813.01x = 89,244,788,933.91
  5. Step 5: Solve for x
    x = 89,244,788,933.91/325,813.01
  6. Step 6: Final answer
    x = 273,914.14

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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.