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Finding the Fourth Proportional to 126,059.76, 173,959.26 and 68,700.56

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Solution

The fourth proportional to 126,059.76, 173,959.26 and 68,700.56 is: 94,805.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,059.76 : 173,959.26 = 68,700.56 : x
  2. Step 2: Convert to fraction form
    126,059.76/173,959.26 = 68,700.56/x
  3. Step 3: Cross multiply
    126,059.76x = 173,959.26 × 68,700.56
  4. Step 4: Simplify right side
    126,059.76x = 11,951,097,838.20
  5. Step 5: Solve for x
    x = 11,951,097,838.20/126,059.76
  6. Step 6: Final answer
    x = 94,805.02

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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.