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Finding the Fourth Proportional to 192,456,609.40, 288,684,914.10 and 188,630,234.20

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Solution

The fourth proportional to 192,456,609.40, 288,684,914.10 and 188,630,234.20 is: 282,945,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,456,609.40 : 288,684,914.10 = 188,630,234.20 : x
  2. Step 2: Convert to fraction form
    192,456,609.40/288,684,914.10 = 188,630,234.20/x
  3. Step 3: Cross multiply
    192,456,609.40x = 288,684,914.10 × 188,630,234.20
  4. Step 4: Simplify right side
    192,456,609.40x = 54,454,702,956,689,880
  5. Step 5: Solve for x
    x = 54,454,702,956,689,880/192,456,609.40
  6. Step 6: Final answer
    x = 282,945,351.30

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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.