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Finding the Fourth Proportional to 127,959.56, 176,640.82 and 82,659.63

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Solution

The fourth proportional to 127,959.56, 176,640.82 and 82,659.63 is: 114,106.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,959.56 : 176,640.82 = 82,659.63 : x
  2. Step 2: Convert to fraction form
    127,959.56/176,640.82 = 82,659.63/x
  3. Step 3: Cross multiply
    127,959.56x = 176,640.82 × 82,659.63
  4. Step 4: Simplify right side
    127,959.56x = 14,601,064,410.80
  5. Step 5: Solve for x
    x = 14,601,064,410.80/127,959.56
  6. Step 6: Final answer
    x = 114,106.87

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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.