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Finding the Fourth Proportional to 323,676.70, 485,512.41 and 99,036.22

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Solution

The fourth proportional to 323,676.70, 485,512.41 and 99,036.22 is: 148,553.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,676.70 : 485,512.41 = 99,036.22 : x
  2. Step 2: Convert to fraction form
    323,676.70/485,512.41 = 99,036.22/x
  3. Step 3: Cross multiply
    323,676.70x = 485,512.41 × 99,036.22
  4. Step 4: Simplify right side
    323,676.70x = 48,083,313,849.49
  5. Step 5: Solve for x
    x = 48,083,313,849.49/323,676.70
  6. Step 6: Final answer
    x = 148,553.52

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1.5x scale

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.