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Finding the Fourth Proportional to 89,329.30, 133,942.92 and 36,695.50

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Solution

The fourth proportional to 89,329.30, 133,942.92 and 36,695.50 is: 55,022.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,329.30 : 133,942.92 = 36,695.50 : x
  2. Step 2: Convert to fraction form
    89,329.30/133,942.92 = 36,695.50/x
  3. Step 3: Cross multiply
    89,329.30x = 133,942.92 × 36,695.50
  4. Step 4: Simplify right side
    89,329.30x = 4,915,102,420.86
  5. Step 5: Solve for x
    x = 4,915,102,420.86/89,329.30
  6. Step 6: Final answer
    x = 55,022.29

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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.