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Finding the Fourth Proportional to 146,913.20, 220,600.20 and 100,372.40

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Solution

The fourth proportional to 146,913.20, 220,600.20 and 100,372.40 is: 150,716.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,913.20 : 220,600.20 = 100,372.40 : x
  2. Step 2: Convert to fraction form
    146,913.20/220,600.20 = 100,372.40/x
  3. Step 3: Cross multiply
    146,913.20x = 220,600.20 × 100,372.40
  4. Step 4: Simplify right side
    146,913.20x = 22,142,171,514.48
  5. Step 5: Solve for x
    x = 22,142,171,514.48/146,913.20
  6. Step 6: Final answer
    x = 150,716.01

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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.