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Finding the Fourth Proportional to 100,676.01, 150,685.34 and 74,014.97

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Solution

The fourth proportional to 100,676.01, 150,685.34 and 74,014.97 is: 110,780.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,676.01 : 150,685.34 = 74,014.97 : x
  2. Step 2: Convert to fraction form
    100,676.01/150,685.34 = 74,014.97/x
  3. Step 3: Cross multiply
    100,676.01x = 150,685.34 × 74,014.97
  4. Step 4: Simplify right side
    100,676.01x = 11,152,970,351.15
  5. Step 5: Solve for x
    x = 11,152,970,351.15/100,676.01
  6. Step 6: Final answer
    x = 110,780.81

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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.