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Finding the Fourth Proportional to 303,991.95, 419,501.10 and 168,016.44

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Solution

The fourth proportional to 303,991.95, 419,501.10 and 168,016.44 is: 231,858.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,991.95 : 419,501.10 = 168,016.44 : x
  2. Step 2: Convert to fraction form
    303,991.95/419,501.10 = 168,016.44/x
  3. Step 3: Cross multiply
    303,991.95x = 419,501.10 × 168,016.44
  4. Step 4: Simplify right side
    303,991.95x = 70,483,081,398.08
  5. Step 5: Solve for x
    x = 70,483,081,398.08/303,991.95
  6. Step 6: Final answer
    x = 231,858.38

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1.5x scale

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.