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Finding the Fourth Proportional to 260,939.76, 391,475.26 and 73,951.26

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Solution

The fourth proportional to 260,939.76, 391,475.26 and 73,951.26 is: 110,945.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,939.76 : 391,475.26 = 73,951.26 : x
  2. Step 2: Convert to fraction form
    260,939.76/391,475.26 = 73,951.26/x
  3. Step 3: Cross multiply
    260,939.76x = 391,475.26 × 73,951.26
  4. Step 4: Simplify right side
    260,939.76x = 28,950,088,735.83
  5. Step 5: Solve for x
    x = 28,950,088,735.83/260,939.76
  6. Step 6: Final answer
    x = 110,945.49

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1.5x scale

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.