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Finding the Fourth Proportional to 122,327.80, 183,491.70 and 82,469.73

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Solution

The fourth proportional to 122,327.80, 183,491.70 and 82,469.73 is: 123,704.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,327.80 : 183,491.70 = 82,469.73 : x
  2. Step 2: Convert to fraction form
    122,327.80/183,491.70 = 82,469.73/x
  3. Step 3: Cross multiply
    122,327.80x = 183,491.70 × 82,469.73
  4. Step 4: Simplify right side
    122,327.80x = 15,132,510,956.24
  5. Step 5: Solve for x
    x = 15,132,510,956.24/122,327.80
  6. Step 6: Final answer
    x = 123,704.60

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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.