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Finding the Fourth Proportional to 272,112,022.20, 408,168,033.30 and 272,112,022.20

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Solution

The fourth proportional to 272,112,022.20, 408,168,033.30 and 272,112,022.20 is: 408,168,033.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,112,022.20 : 408,168,033.30 = 272,112,022.20 : x
  2. Step 2: Convert to fraction form
    272,112,022.20/408,168,033.30 = 272,112,022.20/x
  3. Step 3: Cross multiply
    272,112,022.20x = 408,168,033.30 × 272,112,022.20
  4. Step 4: Simplify right side
    272,112,022.20x = 111,067,428,938,659,936
  5. Step 5: Solve for x
    x = 111,067,428,938,659,936/272,112,022.20
  6. Step 6: Final answer
    x = 408,168,033.30

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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.