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Finding the Fourth Proportional to 89,328.80, 133,944.60 and 36,743.60

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Solution

The fourth proportional to 89,328.80, 133,944.60 and 36,743.60 is: 55,095.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,328.80 : 133,944.60 = 36,743.60 : x
  2. Step 2: Convert to fraction form
    89,328.80/133,944.60 = 36,743.60/x
  3. Step 3: Cross multiply
    89,328.80x = 133,944.60 × 36,743.60
  4. Step 4: Simplify right side
    89,328.80x = 4,921,606,804.56
  5. Step 5: Solve for x
    x = 4,921,606,804.56/89,328.80
  6. Step 6: Final answer
    x = 55,095.41

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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.