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Finding the Fourth Proportional to 353,676.80, 530,520.72 and 196,901.68

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Solution

The fourth proportional to 353,676.80, 530,520.72 and 196,901.68 is: 295,355.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,676.80 : 530,520.72 = 196,901.68 : x
  2. Step 2: Convert to fraction form
    353,676.80/530,520.72 = 196,901.68/x
  3. Step 3: Cross multiply
    353,676.80x = 530,520.72 × 196,901.68
  4. Step 4: Simplify right side
    353,676.80x = 104,460,421,042.81
  5. Step 5: Solve for x
    x = 104,460,421,042.81/353,676.80
  6. Step 6: Final answer
    x = 295,355.59

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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.