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Finding the Fourth Proportional to 196,705.20, 295,057.80 and 125,846.40

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Solution

The fourth proportional to 196,705.20, 295,057.80 and 125,846.40 is: 188,769.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,705.20 : 295,057.80 = 125,846.40 : x
  2. Step 2: Convert to fraction form
    196,705.20/295,057.80 = 125,846.40/x
  3. Step 3: Cross multiply
    196,705.20x = 295,057.80 × 125,846.40
  4. Step 4: Simplify right side
    196,705.20x = 37,131,961,921.92
  5. Step 5: Solve for x
    x = 37,131,961,921.92/196,705.20
  6. Step 6: Final answer
    x = 188,769.60

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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.