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Finding the Fourth Proportional to 131,976.10, 197,964.15 and 131,976.10

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Solution

The fourth proportional to 131,976.10, 197,964.15 and 131,976.10 is: 197,964.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,976.10 : 197,964.15 = 131,976.10 : x
  2. Step 2: Convert to fraction form
    131,976.10/197,964.15 = 131,976.10/x
  3. Step 3: Cross multiply
    131,976.10x = 197,964.15 × 131,976.10
  4. Step 4: Simplify right side
    131,976.10x = 26,126,536,456.82
  5. Step 5: Solve for x
    x = 26,126,536,456.82/131,976.10
  6. Step 6: Final answer
    x = 197,964.15

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1.5x scale

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.