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Finding the Fourth Proportional to 192,072.20, 288,108.30 and 168,744.20

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Solution

The fourth proportional to 192,072.20, 288,108.30 and 168,744.20 is: 253,116.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,072.20 : 288,108.30 = 168,744.20 : x
  2. Step 2: Convert to fraction form
    192,072.20/288,108.30 = 168,744.20/x
  3. Step 3: Cross multiply
    192,072.20x = 288,108.30 × 168,744.20
  4. Step 4: Simplify right side
    192,072.20x = 48,616,604,596.86
  5. Step 5: Solve for x
    x = 48,616,604,596.86/192,072.20
  6. Step 6: Final answer
    x = 253,116.30

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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.