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Finding the Fourth Proportional to 122,556.84, 183,874.86 and 60,183.60

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Solution

The fourth proportional to 122,556.84, 183,874.86 and 60,183.60 is: 90,294.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,556.84 : 183,874.86 = 60,183.60 : x
  2. Step 2: Convert to fraction form
    122,556.84/183,874.86 = 60,183.60/x
  3. Step 3: Cross multiply
    122,556.84x = 183,874.86 × 60,183.60
  4. Step 4: Simplify right side
    122,556.84x = 11,066,251,024.30
  5. Step 5: Solve for x
    x = 11,066,251,024.30/122,556.84
  6. Step 6: Final answer
    x = 90,294.85

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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.