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Finding the Fourth Proportional to 122,997.60, 184,496.40 and 67,010.40

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Solution

The fourth proportional to 122,997.60, 184,496.40 and 67,010.40 is: 100,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,997.60 : 184,496.40 = 67,010.40 : x
  2. Step 2: Convert to fraction form
    122,997.60/184,496.40 = 67,010.40/x
  3. Step 3: Cross multiply
    122,997.60x = 184,496.40 × 67,010.40
  4. Step 4: Simplify right side
    122,997.60x = 12,363,177,562.56
  5. Step 5: Solve for x
    x = 12,363,177,562.56/122,997.60
  6. Step 6: Final answer
    x = 100,515.60

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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.