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Finding the Fourth Proportional to 275,243.48, 379,816.49 and 152,742.44

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Solution

The fourth proportional to 275,243.48, 379,816.49 and 152,742.44 is: 210,773.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,243.48 : 379,816.49 = 152,742.44 : x
  2. Step 2: Convert to fraction form
    275,243.48/379,816.49 = 152,742.44/x
  3. Step 3: Cross multiply
    275,243.48x = 379,816.49 × 152,742.44
  4. Step 4: Simplify right side
    275,243.48x = 58,014,094,772.04
  5. Step 5: Solve for x
    x = 58,014,094,772.04/275,243.48
  6. Step 6: Final answer
    x = 210,773.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.