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Finding the Fourth Proportional to 89,076.75, 122,922.32 and 53,286.54

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Solution

The fourth proportional to 89,076.75, 122,922.32 and 53,286.54 is: 73,533.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,076.75 : 122,922.32 = 53,286.54 : x
  2. Step 2: Convert to fraction form
    89,076.75/122,922.32 = 53,286.54/x
  3. Step 3: Cross multiply
    89,076.75x = 122,922.32 × 53,286.54
  4. Step 4: Simplify right side
    89,076.75x = 6,550,104,855.14
  5. Step 5: Solve for x
    x = 6,550,104,855.14/89,076.75
  6. Step 6: Final answer
    x = 73,533.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.