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Finding the Fourth Proportional to 318,961.40, 440,185.19 and 182,994.19

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Solution

The fourth proportional to 318,961.40, 440,185.19 and 182,994.19 is: 252,542.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,961.40 : 440,185.19 = 182,994.19 : x
  2. Step 2: Convert to fraction form
    318,961.40/440,185.19 = 182,994.19/x
  3. Step 3: Cross multiply
    318,961.40x = 440,185.19 × 182,994.19
  4. Step 4: Simplify right side
    318,961.40x = 80,551,330,278.61
  5. Step 5: Solve for x
    x = 80,551,330,278.61/318,961.40
  6. Step 6: Final answer
    x = 252,542.57

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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.