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Finding the Fourth Proportional to 202,196,706.40, 303,295,059.60 and 194,260,520.80

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Solution

The fourth proportional to 202,196,706.40, 303,295,059.60 and 194,260,520.80 is: 291,390,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,196,706.40 : 303,295,059.60 = 194,260,520.80 : x
  2. Step 2: Convert to fraction form
    202,196,706.40/303,295,059.60 = 194,260,520.80/x
  3. Step 3: Cross multiply
    202,196,706.40x = 303,295,059.60 × 194,260,520.80
  4. Step 4: Simplify right side
    202,196,706.40x = 58,918,256,233,963,048
  5. Step 5: Solve for x
    x = 58,918,256,233,963,048/202,196,706.40
  6. Step 6: Final answer
    x = 291,390,781.20

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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.