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Finding the Fourth Proportional to 125,940.32, 173,694.32 and 91,910.56

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Solution

The fourth proportional to 125,940.32, 173,694.32 and 91,910.56 is: 126,761.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,940.32 : 173,694.32 = 91,910.56 : x
  2. Step 2: Convert to fraction form
    125,940.32/173,694.32 = 91,910.56/x
  3. Step 3: Cross multiply
    125,940.32x = 173,694.32 × 91,910.56
  4. Step 4: Simplify right side
    125,940.32x = 15,964,342,220.02
  5. Step 5: Solve for x
    x = 15,964,342,220.02/125,940.32
  6. Step 6: Final answer
    x = 126,761.17

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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.