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Finding the Fourth Proportional to 193,003.20, 289,375.20 and 103,060.80

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Solution

The fourth proportional to 193,003.20, 289,375.20 and 103,060.80 is: 154,522.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,003.20 : 289,375.20 = 103,060.80 : x
  2. Step 2: Convert to fraction form
    193,003.20/289,375.20 = 103,060.80/x
  3. Step 3: Cross multiply
    193,003.20x = 289,375.20 × 103,060.80
  4. Step 4: Simplify right side
    193,003.20x = 29,823,239,612.16
  5. Step 5: Solve for x
    x = 29,823,239,612.16/193,003.20
  6. Step 6: Final answer
    x = 154,522.00

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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.