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Finding the Fourth Proportional to 324,734.68, 487,150.50 and 100,076.44

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Solution

The fourth proportional to 324,734.68, 487,150.50 and 100,076.44 is: 150,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,734.68 : 487,150.50 = 100,076.44 : x
  2. Step 2: Convert to fraction form
    324,734.68/487,150.50 = 100,076.44/x
  3. Step 3: Cross multiply
    324,734.68x = 487,150.50 × 100,076.44
  4. Step 4: Simplify right side
    324,734.68x = 48,752,287,784.22
  5. Step 5: Solve for x
    x = 48,752,287,784.22/324,734.68
  6. Step 6: Final answer
    x = 150,129.60

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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.