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Finding the Fourth Proportional to 274,736,704.80, 412,105,057.20 and 266,774,080.80

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Solution

The fourth proportional to 274,736,704.80, 412,105,057.20 and 266,774,080.80 is: 400,161,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,736,704.80 : 412,105,057.20 = 266,774,080.80 : x
  2. Step 2: Convert to fraction form
    274,736,704.80/412,105,057.20 = 266,774,080.80/x
  3. Step 3: Cross multiply
    274,736,704.80x = 412,105,057.20 × 266,774,080.80
  4. Step 4: Simplify right side
    274,736,704.80x = 109,938,947,827,561,424
  5. Step 5: Solve for x
    x = 109,938,947,827,561,424/274,736,704.80
  6. Step 6: Final answer
    x = 400,161,121.20

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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.