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Finding the Fourth Proportional to 146,245.50, 201,849.98 and 100,367.91

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Solution

The fourth proportional to 146,245.50, 201,849.98 and 100,367.91 is: 138,529.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,245.50 : 201,849.98 = 100,367.91 : x
  2. Step 2: Convert to fraction form
    146,245.50/201,849.98 = 100,367.91/x
  3. Step 3: Cross multiply
    146,245.50x = 201,849.98 × 100,367.91
  4. Step 4: Simplify right side
    146,245.50x = 20,259,260,124.30
  5. Step 5: Solve for x
    x = 20,259,260,124.30/146,245.50
  6. Step 6: Final answer
    x = 138,529.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.