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Finding the Fourth Proportional to 122,273.70, 168,745.77 and 68,562.15

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Solution

The fourth proportional to 122,273.70, 168,745.77 and 68,562.15 is: 94,620.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,273.70 : 168,745.77 = 68,562.15 : x
  2. Step 2: Convert to fraction form
    122,273.70/168,745.77 = 68,562.15/x
  3. Step 3: Cross multiply
    122,273.70x = 168,745.77 × 68,562.15
  4. Step 4: Simplify right side
    122,273.70x = 11,569,572,794.61
  5. Step 5: Solve for x
    x = 11,569,572,794.61/122,273.70
  6. Step 6: Final answer
    x = 94,620.29

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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.