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Finding the Fourth Proportional to 132,060.30, 197,786.70 and 108,440.70

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Solution

The fourth proportional to 132,060.30, 197,786.70 and 108,440.70 is: 162,411.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,060.30 : 197,786.70 = 108,440.70 : x
  2. Step 2: Convert to fraction form
    132,060.30/197,786.70 = 108,440.70/x
  3. Step 3: Cross multiply
    132,060.30x = 197,786.70 × 108,440.70
  4. Step 4: Simplify right side
    132,060.30x = 21,448,128,198.69
  5. Step 5: Solve for x
    x = 21,448,128,198.69/132,060.30
  6. Step 6: Final answer
    x = 162,411.63

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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.