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Finding the Fourth Proportional to 190,597.81, 285,914.41 and 136,053.62

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Solution

The fourth proportional to 190,597.81, 285,914.41 and 136,053.62 is: 204,093.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,597.81 : 285,914.41 = 136,053.62 : x
  2. Step 2: Convert to fraction form
    190,597.81/285,914.41 = 136,053.62/x
  3. Step 3: Cross multiply
    190,597.81x = 285,914.41 × 136,053.62
  4. Step 4: Simplify right side
    190,597.81x = 38,899,691,401.41
  5. Step 5: Solve for x
    x = 38,899,691,401.41/190,597.81
  6. Step 6: Final answer
    x = 204,093.07

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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.