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Finding the Fourth Proportional to 122,906.60, 184,359.90 and 39,800.60

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Solution

The fourth proportional to 122,906.60, 184,359.90 and 39,800.60 is: 59,700.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,906.60 : 184,359.90 = 39,800.60 : x
  2. Step 2: Convert to fraction form
    122,906.60/184,359.90 = 39,800.60/x
  3. Step 3: Cross multiply
    122,906.60x = 184,359.90 × 39,800.60
  4. Step 4: Simplify right side
    122,906.60x = 7,337,634,635.94
  5. Step 5: Solve for x
    x = 7,337,634,635.94/122,906.60
  6. Step 6: Final answer
    x = 59,700.90

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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.