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Finding the Fourth Proportional to 303,690.60, 419,086.62 and 167,716.62

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Solution

The fourth proportional to 303,690.60, 419,086.62 and 167,716.62 is: 231,445.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,690.60 : 419,086.62 = 167,716.62 : x
  2. Step 2: Convert to fraction form
    303,690.60/419,086.62 = 167,716.62/x
  3. Step 3: Cross multiply
    303,690.60x = 419,086.62 × 167,716.62
  4. Step 4: Simplify right side
    303,690.60x = 70,287,791,393.62
  5. Step 5: Solve for x
    x = 70,287,791,393.62/303,690.60
  6. Step 6: Final answer
    x = 231,445.40

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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.