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Finding the Fourth Proportional to 263,039.20, 362,986.80 and 148,316.80

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Solution

The fourth proportional to 263,039.20, 362,986.80 and 148,316.80 is: 204,673.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,039.20 : 362,986.80 = 148,316.80 : x
  2. Step 2: Convert to fraction form
    263,039.20/362,986.80 = 148,316.80/x
  3. Step 3: Cross multiply
    263,039.20x = 362,986.80 × 148,316.80
  4. Step 4: Simplify right side
    263,039.20x = 53,837,040,618.24
  5. Step 5: Solve for x
    x = 53,837,040,618.24/263,039.20
  6. Step 6: Final answer
    x = 204,673.07

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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.