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Finding the Fourth Proportional to 201,659,384.40, 302,489,076.60 and 199,746,196.80

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Solution

The fourth proportional to 201,659,384.40, 302,489,076.60 and 199,746,196.80 is: 299,619,295.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,659,384.40 : 302,489,076.60 = 199,746,196.80 : x
  2. Step 2: Convert to fraction form
    201,659,384.40/302,489,076.60 = 199,746,196.80/x
  3. Step 3: Cross multiply
    201,659,384.40x = 302,489,076.60 × 199,746,196.80
  4. Step 4: Simplify right side
    201,659,384.40x = 60,421,042,624,393,880
  5. Step 5: Solve for x
    x = 60,421,042,624,393,880/201,659,384.40
  6. Step 6: Final answer
    x = 299,619,295.20

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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.