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Finding the Fourth Proportional to 201,790.83, 302,683.50 and 68,763.81

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Solution

The fourth proportional to 201,790.83, 302,683.50 and 68,763.81 is: 103,144.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,790.83 : 302,683.50 = 68,763.81 : x
  2. Step 2: Convert to fraction form
    201,790.83/302,683.50 = 68,763.81/x
  3. Step 3: Cross multiply
    201,790.83x = 302,683.50 × 68,763.81
  4. Step 4: Simplify right side
    201,790.83x = 20,813,670,684.14
  5. Step 5: Solve for x
    x = 20,813,670,684.14/201,790.83
  6. Step 6: Final answer
    x = 103,144.78

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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.