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Finding the Fourth Proportional to 126,361,632, 189,542,448 and 30,623,520

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Solution

The fourth proportional to 126,361,632, 189,542,448 and 30,623,520 is: 45,935,280

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,361,632 : 189,542,448 = 30,623,520 : x
  2. Step 2: Convert to fraction form
    126,361,632/189,542,448 = 30,623,520/x
  3. Step 3: Cross multiply
    126,361,632x = 189,542,448 × 30,623,520
  4. Step 4: Simplify right side
    126,361,632x = 5,804,456,947,176,960
  5. Step 5: Solve for x
    x = 5,804,456,947,176,960/126,361,632
  6. Step 6: Final answer
    x = 45,935,280

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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.