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Finding the Fourth Proportional to 73,395.80, 110,093.70 and 72,704.60

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Solution

The fourth proportional to 73,395.80, 110,093.70 and 72,704.60 is: 109,056.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,395.80 : 110,093.70 = 72,704.60 : x
  2. Step 2: Convert to fraction form
    73,395.80/110,093.70 = 72,704.60/x
  3. Step 3: Cross multiply
    73,395.80x = 110,093.70 × 72,704.60
  4. Step 4: Simplify right side
    73,395.80x = 8,004,318,421.02
  5. Step 5: Solve for x
    x = 8,004,318,421.02/73,395.80
  6. Step 6: Final answer
    x = 109,056.90

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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.