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Finding the Fourth Proportional to 297,935.20, 446,816.40 and 120,383.20

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Solution

The fourth proportional to 297,935.20, 446,816.40 and 120,383.20 is: 180,539.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,935.20 : 446,816.40 = 120,383.20 : x
  2. Step 2: Convert to fraction form
    297,935.20/446,816.40 = 120,383.20/x
  3. Step 3: Cross multiply
    297,935.20x = 446,816.40 × 120,383.20
  4. Step 4: Simplify right side
    297,935.20x = 53,789,188,044.48
  5. Step 5: Solve for x
    x = 53,789,188,044.48/297,935.20
  6. Step 6: Final answer
    x = 180,539.89

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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.