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Finding the Fourth Proportional to 127,745.92, 191,535.44 and 61,183.92

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Solution

The fourth proportional to 127,745.92, 191,535.44 and 61,183.92 is: 91,735.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,745.92 : 191,535.44 = 61,183.92 : x
  2. Step 2: Convert to fraction form
    127,745.92/191,535.44 = 61,183.92/x
  3. Step 3: Cross multiply
    127,745.92x = 191,535.44 × 61,183.92
  4. Step 4: Simplify right side
    127,745.92x = 11,718,889,038.12
  5. Step 5: Solve for x
    x = 11,718,889,038.12/127,745.92
  6. Step 6: Final answer
    x = 91,735.92

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1.5x scale

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.