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Finding the Fourth Proportional to 220,895.75, 331,343.63 and 54,683.75

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Solution

The fourth proportional to 220,895.75, 331,343.63 and 54,683.75 is: 82,025.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,895.75 : 331,343.63 = 54,683.75 : x
  2. Step 2: Convert to fraction form
    220,895.75/331,343.63 = 54,683.75/x
  3. Step 3: Cross multiply
    220,895.75x = 331,343.63 × 54,683.75
  4. Step 4: Simplify right side
    220,895.75x = 18,119,112,227.01
  5. Step 5: Solve for x
    x = 18,119,112,227.01/220,895.75
  6. Step 6: Final answer
    x = 82,025.63

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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.