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Finding the Fourth Proportional to 190,356.96, 285,815.16 and 186,997.44

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Solution

The fourth proportional to 190,356.96, 285,815.16 and 186,997.44 is: 280,770.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,356.96 : 285,815.16 = 186,997.44 : x
  2. Step 2: Convert to fraction form
    190,356.96/285,815.16 = 186,997.44/x
  3. Step 3: Cross multiply
    190,356.96x = 285,815.16 × 186,997.44
  4. Step 4: Simplify right side
    190,356.96x = 53,446,703,233.19
  5. Step 5: Solve for x
    x = 53,446,703,233.19/190,356.96
  6. Step 6: Final answer
    x = 280,770.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.