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Finding the Fourth Proportional to 303,994.64, 419,534.30 and 168,025.68

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Solution

The fourth proportional to 303,994.64, 419,534.30 and 168,025.68 is: 231,887.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,994.64 : 419,534.30 = 168,025.68 : x
  2. Step 2: Convert to fraction form
    303,994.64/419,534.30 = 168,025.68/x
  3. Step 3: Cross multiply
    303,994.64x = 419,534.30 × 168,025.68
  4. Step 4: Simplify right side
    303,994.64x = 70,492,536,040.82
  5. Step 5: Solve for x
    x = 70,492,536,040.82/303,994.64
  6. Step 6: Final answer
    x = 231,887.43

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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.