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Finding the Fourth Proportional to 199,062.80, 298,594.20 and 80,673.20

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Solution

The fourth proportional to 199,062.80, 298,594.20 and 80,673.20 is: 121,009.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,062.80 : 298,594.20 = 80,673.20 : x
  2. Step 2: Convert to fraction form
    199,062.80/298,594.20 = 80,673.20/x
  3. Step 3: Cross multiply
    199,062.80x = 298,594.20 × 80,673.20
  4. Step 4: Simplify right side
    199,062.80x = 24,088,549,615.44
  5. Step 5: Solve for x
    x = 24,088,549,615.44/199,062.80
  6. Step 6: Final answer
    x = 121,009.80

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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.