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Finding the Fourth Proportional to 111,212.80, 166,819.20 and 41,077.60

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Solution

The fourth proportional to 111,212.80, 166,819.20 and 41,077.60 is: 61,616.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,212.80 : 166,819.20 = 41,077.60 : x
  2. Step 2: Convert to fraction form
    111,212.80/166,819.20 = 41,077.60/x
  3. Step 3: Cross multiply
    111,212.80x = 166,819.20 × 41,077.60
  4. Step 4: Simplify right side
    111,212.80x = 6,852,532,369.92
  5. Step 5: Solve for x
    x = 6,852,532,369.92/111,212.80
  6. Step 6: Final answer
    x = 61,616.40

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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.