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Finding the Fourth Proportional to 273,121.39, 409,700.54 and 130,997.83

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Solution

The fourth proportional to 273,121.39, 409,700.54 and 130,997.83 is: 196,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,121.39 : 409,700.54 = 130,997.83 : x
  2. Step 2: Convert to fraction form
    273,121.39/409,700.54 = 130,997.83/x
  3. Step 3: Cross multiply
    273,121.39x = 409,700.54 × 130,997.83
  4. Step 4: Simplify right side
    273,121.39x = 53,669,881,689.83
  5. Step 5: Solve for x
    x = 53,669,881,689.83/273,121.39
  6. Step 6: Final answer
    x = 196,505.60

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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.