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Finding the Fourth Proportional to 201,738,694.40, 302,608,041.60 and 132,863,940.80

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Solution

The fourth proportional to 201,738,694.40, 302,608,041.60 and 132,863,940.80 is: 199,295,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,738,694.40 : 302,608,041.60 = 132,863,940.80 : x
  2. Step 2: Convert to fraction form
    201,738,694.40/302,608,041.60 = 132,863,940.80/x
  3. Step 3: Cross multiply
    201,738,694.40x = 302,608,041.60 × 132,863,940.80
  4. Step 4: Simplify right side
    201,738,694.40x = 40,205,696,924,746,336
  5. Step 5: Solve for x
    x = 40,205,696,924,746,336/201,738,694.40
  6. Step 6: Final answer
    x = 199,295,911.20

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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.