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Finding the Fourth Proportional to 275,609.40, 412,976.70 and 182,005.80

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Solution

The fourth proportional to 275,609.40, 412,976.70 and 182,005.80 is: 272,719.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,609.40 : 412,976.70 = 182,005.80 : x
  2. Step 2: Convert to fraction form
    275,609.40/412,976.70 = 182,005.80/x
  3. Step 3: Cross multiply
    275,609.40x = 412,976.70 × 182,005.80
  4. Step 4: Simplify right side
    275,609.40x = 75,164,154,664.86
  5. Step 5: Solve for x
    x = 75,164,154,664.86/275,609.40
  6. Step 6: Final answer
    x = 272,719.85

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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.