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Finding the Fourth Proportional to 197,129.70, 295,694.55 and 136,995.30

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Solution

The fourth proportional to 197,129.70, 295,694.55 and 136,995.30 is: 205,492.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,129.70 : 295,694.55 = 136,995.30 : x
  2. Step 2: Convert to fraction form
    197,129.70/295,694.55 = 136,995.30/x
  3. Step 3: Cross multiply
    197,129.70x = 295,694.55 × 136,995.30
  4. Step 4: Simplify right side
    197,129.70x = 40,508,763,585.62
  5. Step 5: Solve for x
    x = 40,508,763,585.62/197,129.70
  6. Step 6: Final answer
    x = 205,492.95

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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.