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Finding the Fourth Proportional to 111,274.80, 166,928.40 and 36,376.80

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Solution

The fourth proportional to 111,274.80, 166,928.40 and 36,376.80 is: 54,570.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,274.80 : 166,928.40 = 36,376.80 : x
  2. Step 2: Convert to fraction form
    111,274.80/166,928.40 = 36,376.80/x
  3. Step 3: Cross multiply
    111,274.80x = 166,928.40 × 36,376.80
  4. Step 4: Simplify right side
    111,274.80x = 6,072,321,021.12
  5. Step 5: Solve for x
    x = 6,072,321,021.12/111,274.80
  6. Step 6: Final answer
    x = 54,570.50

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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.