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Finding the Fourth Proportional to 307,940,333.76, 461,813,803.92 and 100,631,472.48

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Solution

The fourth proportional to 307,940,333.76, 461,813,803.92 and 100,631,472.48 is: 150,915,609.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,940,333.76 : 461,813,803.92 = 100,631,472.48 : x
  2. Step 2: Convert to fraction form
    307,940,333.76/461,813,803.92 = 100,631,472.48/x
  3. Step 3: Cross multiply
    307,940,333.76x = 461,813,803.92 × 100,631,472.48
  4. Step 4: Simplify right side
    307,940,333.76x = 46,473,003,100,059,600
  5. Step 5: Solve for x
    x = 46,473,003,100,059,600/307,940,333.76
  6. Step 6: Final answer
    x = 150,915,609.31

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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.