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Finding the Fourth Proportional to 225,745.72, 311,485.22 and 133,848.03

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Solution

The fourth proportional to 225,745.72, 311,485.22 and 133,848.03 is: 184,684.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,745.72 : 311,485.22 = 133,848.03 : x
  2. Step 2: Convert to fraction form
    225,745.72/311,485.22 = 133,848.03/x
  3. Step 3: Cross multiply
    225,745.72x = 311,485.22 × 133,848.03
  4. Step 4: Simplify right side
    225,745.72x = 41,691,683,405.74
  5. Step 5: Solve for x
    x = 41,691,683,405.74/225,745.72
  6. Step 6: Final answer
    x = 184,684.27

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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.