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Finding the Fourth Proportional to 127,946.36, 176,659.80 and 82,650.80

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Solution

The fourth proportional to 127,946.36, 176,659.80 and 82,650.80 is: 114,118.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,946.36 : 176,659.80 = 82,650.80 : x
  2. Step 2: Convert to fraction form
    127,946.36/176,659.80 = 82,650.80/x
  3. Step 3: Cross multiply
    127,946.36x = 176,659.80 × 82,650.80
  4. Step 4: Simplify right side
    127,946.36x = 14,601,073,797.84
  5. Step 5: Solve for x
    x = 14,601,073,797.84/127,946.36
  6. Step 6: Final answer
    x = 114,118.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.