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Finding the Fourth Proportional to 297,661.20, 446,491.80 and 100,669.20

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Solution

The fourth proportional to 297,661.20, 446,491.80 and 100,669.20 is: 151,003.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,661.20 : 446,491.80 = 100,669.20 : x
  2. Step 2: Convert to fraction form
    297,661.20/446,491.80 = 100,669.20/x
  3. Step 3: Cross multiply
    297,661.20x = 446,491.80 × 100,669.20
  4. Step 4: Simplify right side
    297,661.20x = 44,947,972,312.56
  5. Step 5: Solve for x
    x = 44,947,972,312.56/297,661.20
  6. Step 6: Final answer
    x = 151,003.80

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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.