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Finding the Fourth Proportional to 89,683.89, 134,532.78 and 36,350.48

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Solution

The fourth proportional to 89,683.89, 134,532.78 and 36,350.48 is: 54,528.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,683.89 : 134,532.78 = 36,350.48 : x
  2. Step 2: Convert to fraction form
    89,683.89/134,532.78 = 36,350.48/x
  3. Step 3: Cross multiply
    89,683.89x = 134,532.78 × 36,350.48
  4. Step 4: Simplify right side
    89,683.89x = 4,890,331,128.73
  5. Step 5: Solve for x
    x = 4,890,331,128.73/89,683.89
  6. Step 6: Final answer
    x = 54,528.53

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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.