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Finding the Fourth Proportional to 274,688,987.80, 412,033,481.70 and 237,700,694.20

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Solution

The fourth proportional to 274,688,987.80, 412,033,481.70 and 237,700,694.20 is: 356,551,041.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,688,987.80 : 412,033,481.70 = 237,700,694.20 : x
  2. Step 2: Convert to fraction form
    274,688,987.80/412,033,481.70 = 237,700,694.20/x
  3. Step 3: Cross multiply
    274,688,987.80x = 412,033,481.70 × 237,700,694.20
  4. Step 4: Simplify right side
    274,688,987.80x = 97,940,644,633,732,992
  5. Step 5: Solve for x
    x = 97,940,644,633,732,992/274,688,987.80
  6. Step 6: Final answer
    x = 356,551,041.30

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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.