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Finding the Fourth Proportional to 297,446.45, 446,104.06 and 87,100.79

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Solution

The fourth proportional to 297,446.45, 446,104.06 and 87,100.79 is: 130,631.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,446.45 : 446,104.06 = 87,100.79 : x
  2. Step 2: Convert to fraction form
    297,446.45/446,104.06 = 87,100.79/x
  3. Step 3: Cross multiply
    297,446.45x = 446,104.06 × 87,100.79
  4. Step 4: Simplify right side
    297,446.45x = 38,856,013,599.94
  5. Step 5: Solve for x
    x = 38,856,013,599.94/297,446.45
  6. Step 6: Final answer
    x = 130,631.97

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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.