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Finding the Fourth Proportional to 192,470.80, 288,706.20 and 173,225.20

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Solution

The fourth proportional to 192,470.80, 288,706.20 and 173,225.20 is: 259,837.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,470.80 : 288,706.20 = 173,225.20 : x
  2. Step 2: Convert to fraction form
    192,470.80/288,706.20 = 173,225.20/x
  3. Step 3: Cross multiply
    192,470.80x = 288,706.20 × 173,225.20
  4. Step 4: Simplify right side
    192,470.80x = 50,011,189,236.24
  5. Step 5: Solve for x
    x = 50,011,189,236.24/192,470.80
  6. Step 6: Final answer
    x = 259,837.80

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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.