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Finding the Fourth Proportional to 197,978.53, 273,212.25 and 107,334.26

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Solution

The fourth proportional to 197,978.53, 273,212.25 and 107,334.26 is: 148,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,978.53 : 273,212.25 = 107,334.26 : x
  2. Step 2: Convert to fraction form
    197,978.53/273,212.25 = 107,334.26/x
  3. Step 3: Cross multiply
    197,978.53x = 273,212.25 × 107,334.26
  4. Step 4: Simplify right side
    197,978.53x = 29,325,034,676.69
  5. Step 5: Solve for x
    x = 29,325,034,676.69/197,978.53
  6. Step 6: Final answer
    x = 148,122.30

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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.