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Finding the Fourth Proportional to 126,957.66, 190,550.70 and 67,843.86

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Solution

The fourth proportional to 126,957.66, 190,550.70 and 67,843.86 is: 101,826.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,957.66 : 190,550.70 = 67,843.86 : x
  2. Step 2: Convert to fraction form
    126,957.66/190,550.70 = 67,843.86/x
  3. Step 3: Cross multiply
    126,957.66x = 190,550.70 × 67,843.86
  4. Step 4: Simplify right side
    126,957.66x = 12,927,695,013.70
  5. Step 5: Solve for x
    x = 12,927,695,013.70/126,957.66
  6. Step 6: Final answer
    x = 101,826.82

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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.