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Finding the Fourth Proportional to 275,586.53, 380,350.96 and 168,218.80

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Solution

The fourth proportional to 275,586.53, 380,350.96 and 168,218.80 is: 232,167.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,586.53 : 380,350.96 = 168,218.80 : x
  2. Step 2: Convert to fraction form
    275,586.53/380,350.96 = 168,218.80/x
  3. Step 3: Cross multiply
    275,586.53x = 380,350.96 × 168,218.80
  4. Step 4: Simplify right side
    275,586.53x = 63,982,180,698.62
  5. Step 5: Solve for x
    x = 63,982,180,698.62/275,586.53
  6. Step 6: Final answer
    x = 232,167.30

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1.5x scale

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.