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Finding the Fourth Proportional to 144,568.96, 199,506.18 and 80,912.68

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Solution

The fourth proportional to 144,568.96, 199,506.18 and 80,912.68 is: 111,660.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,568.96 : 199,506.18 = 80,912.68 : x
  2. Step 2: Convert to fraction form
    144,568.96/199,506.18 = 80,912.68/x
  3. Step 3: Cross multiply
    144,568.96x = 199,506.18 × 80,912.68
  4. Step 4: Simplify right side
    144,568.96x = 16,142,579,700.36
  5. Step 5: Solve for x
    x = 16,142,579,700.36/144,568.96
  6. Step 6: Final answer
    x = 111,660.07

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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.