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Finding the Fourth Proportional to 240,722.08, 360,847.44 and 100,520.80

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Solution

The fourth proportional to 240,722.08, 360,847.44 and 100,520.80 is: 150,682.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,722.08 : 360,847.44 = 100,520.80 : x
  2. Step 2: Convert to fraction form
    240,722.08/360,847.44 = 100,520.80/x
  3. Step 3: Cross multiply
    240,722.08x = 360,847.44 × 100,520.80
  4. Step 4: Simplify right side
    240,722.08x = 36,272,673,346.75
  5. Step 5: Solve for x
    x = 36,272,673,346.75/240,722.08
  6. Step 6: Final answer
    x = 150,682.78

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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.