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Finding the Fourth Proportional to 297,753.72, 446,623.20 and 73,112.28

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Solution

The fourth proportional to 297,753.72, 446,623.20 and 73,112.28 is: 109,666.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,753.72 : 446,623.20 = 73,112.28 : x
  2. Step 2: Convert to fraction form
    297,753.72/446,623.20 = 73,112.28/x
  3. Step 3: Cross multiply
    297,753.72x = 446,623.20 × 73,112.28
  4. Step 4: Simplify right side
    297,753.72x = 32,653,640,452.90
  5. Step 5: Solve for x
    x = 32,653,640,452.90/297,753.72
  6. Step 6: Final answer
    x = 109,666.61

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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.