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Finding the Fourth Proportional to 192,016.80, 288,025.20 and 169,207.20

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Solution

The fourth proportional to 192,016.80, 288,025.20 and 169,207.20 is: 253,810.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,016.80 : 288,025.20 = 169,207.20 : x
  2. Step 2: Convert to fraction form
    192,016.80/288,025.20 = 169,207.20/x
  3. Step 3: Cross multiply
    192,016.80x = 288,025.20 × 169,207.20
  4. Step 4: Simplify right side
    192,016.80x = 48,735,937,621.44
  5. Step 5: Solve for x
    x = 48,735,937,621.44/192,016.80
  6. Step 6: Final answer
    x = 253,810.80

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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.