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Finding the Fourth Proportional to 111,282.40, 166,923.60 and 55,100.80

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Solution

The fourth proportional to 111,282.40, 166,923.60 and 55,100.80 is: 82,651.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,282.40 : 166,923.60 = 55,100.80 : x
  2. Step 2: Convert to fraction form
    111,282.40/166,923.60 = 55,100.80/x
  3. Step 3: Cross multiply
    111,282.40x = 166,923.60 × 55,100.80
  4. Step 4: Simplify right side
    111,282.40x = 9,197,623,898.88
  5. Step 5: Solve for x
    x = 9,197,623,898.88/111,282.40
  6. Step 6: Final answer
    x = 82,651.20

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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.