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Finding the Fourth Proportional to 190,286.57, 285,294.75 and 95,448.53

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Solution

The fourth proportional to 190,286.57, 285,294.75 and 95,448.53 is: 143,105.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,286.57 : 285,294.75 = 95,448.53 : x
  2. Step 2: Convert to fraction form
    190,286.57/285,294.75 = 95,448.53/x
  3. Step 3: Cross multiply
    190,286.57x = 285,294.75 × 95,448.53
  4. Step 4: Simplify right side
    190,286.57x = 27,230,964,504.22
  5. Step 5: Solve for x
    x = 27,230,964,504.22/190,286.57
  6. Step 6: Final answer
    x = 143,105.03

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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.