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Finding the Fourth Proportional to 123,201.92, 170,024.44 and 69,485.80

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Solution

The fourth proportional to 123,201.92, 170,024.44 and 69,485.80 is: 95,893.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,201.92 : 170,024.44 = 69,485.80 : x
  2. Step 2: Convert to fraction form
    123,201.92/170,024.44 = 69,485.80/x
  3. Step 3: Cross multiply
    123,201.92x = 170,024.44 × 69,485.80
  4. Step 4: Simplify right side
    123,201.92x = 11,814,284,232.95
  5. Step 5: Solve for x
    x = 11,814,284,232.95/123,201.92
  6. Step 6: Final answer
    x = 95,893.67

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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.