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Finding the Fourth Proportional to 73,231.80, 109,847.70 and 49,903.80

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Solution

The fourth proportional to 73,231.80, 109,847.70 and 49,903.80 is: 74,855.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,231.80 : 109,847.70 = 49,903.80 : x
  2. Step 2: Convert to fraction form
    73,231.80/109,847.70 = 49,903.80/x
  3. Step 3: Cross multiply
    73,231.80x = 109,847.70 × 49,903.80
  4. Step 4: Simplify right side
    73,231.80x = 5,481,817,651.26
  5. Step 5: Solve for x
    x = 5,481,817,651.26/73,231.80
  6. Step 6: Final answer
    x = 74,855.70

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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.