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Finding the Fourth Proportional to 275,300.15, 412,933.61 and 163,690.61

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Solution

The fourth proportional to 275,300.15, 412,933.61 and 163,690.61 is: 245,526.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,300.15 : 412,933.61 = 163,690.61 : x
  2. Step 2: Convert to fraction form
    275,300.15/412,933.61 = 163,690.61/x
  3. Step 3: Cross multiply
    275,300.15x = 412,933.61 × 163,690.61
  4. Step 4: Simplify right side
    275,300.15x = 67,593,355,951.96
  5. Step 5: Solve for x
    x = 67,593,355,951.96/275,300.15
  6. Step 6: Final answer
    x = 245,526.05

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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.