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Finding the Fourth Proportional to 144,570.96, 199,508.94 and 80,914.68

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Solution

The fourth proportional to 144,570.96, 199,508.94 and 80,914.68 is: 111,662.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,570.96 : 199,508.94 = 80,914.68 : x
  2. Step 2: Convert to fraction form
    144,570.96/199,508.94 = 80,914.68/x
  3. Step 3: Cross multiply
    144,570.96x = 199,508.94 × 80,914.68
  4. Step 4: Simplify right side
    144,570.96x = 16,143,202,037.24
  5. Step 5: Solve for x
    x = 16,143,202,037.24/144,570.96
  6. Step 6: Final answer
    x = 111,662.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.