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Finding the Fourth Proportional to 275,362.92, 412,379.10 and 156,674.70

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Solution

The fourth proportional to 275,362.92, 412,379.10 and 156,674.70 is: 234,633.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,362.92 : 412,379.10 = 156,674.70 : x
  2. Step 2: Convert to fraction form
    275,362.92/412,379.10 = 156,674.70/x
  3. Step 3: Cross multiply
    275,362.92x = 412,379.10 × 156,674.70
  4. Step 4: Simplify right side
    275,362.92x = 64,609,371,778.77
  5. Step 5: Solve for x
    x = 64,609,371,778.77/275,362.92
  6. Step 6: Final answer
    x = 234,633.52

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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.