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Finding the Fourth Proportional to 492,170.22, 738,316.89 and 192,612.11

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Solution

The fourth proportional to 492,170.22, 738,316.89 and 192,612.11 is: 288,942.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,170.22 : 738,316.89 = 192,612.11 : x
  2. Step 2: Convert to fraction form
    492,170.22/738,316.89 = 192,612.11/x
  3. Step 3: Cross multiply
    492,170.22x = 738,316.89 × 192,612.11
  4. Step 4: Simplify right side
    492,170.22x = 142,208,770,339.95
  5. Step 5: Solve for x
    x = 142,208,770,339.95/492,170.22
  6. Step 6: Final answer
    x = 288,942.25

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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.