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Finding the Fourth Proportional to 111,200.90, 166,801.35 and 73,811.30

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Solution

The fourth proportional to 111,200.90, 166,801.35 and 73,811.30 is: 110,716.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,200.90 : 166,801.35 = 73,811.30 : x
  2. Step 2: Convert to fraction form
    111,200.90/166,801.35 = 73,811.30/x
  3. Step 3: Cross multiply
    111,200.90x = 166,801.35 × 73,811.30
  4. Step 4: Simplify right side
    111,200.90x = 12,311,824,485.26
  5. Step 5: Solve for x
    x = 12,311,824,485.26/111,200.90
  6. Step 6: Final answer
    x = 110,716.95

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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.