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Finding the Fourth Proportional to 122,449.06, 168,936.24 and 80,032.06

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Solution

The fourth proportional to 122,449.06, 168,936.24 and 80,032.06 is: 110,415.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,449.06 : 168,936.24 = 80,032.06 : x
  2. Step 2: Convert to fraction form
    122,449.06/168,936.24 = 80,032.06/x
  3. Step 3: Cross multiply
    122,449.06x = 168,936.24 × 80,032.06
  4. Step 4: Simplify right side
    122,449.06x = 13,520,315,295.85
  5. Step 5: Solve for x
    x = 13,520,315,295.85/122,449.06
  6. Step 6: Final answer
    x = 110,415.84

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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.