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Finding the Fourth Proportional to 119,500.70, 164,910.06 and 65,786.63

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Solution

The fourth proportional to 119,500.70, 164,910.06 and 65,786.63 is: 90,785.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,500.70 : 164,910.06 = 65,786.63 : x
  2. Step 2: Convert to fraction form
    119,500.70/164,910.06 = 65,786.63/x
  3. Step 3: Cross multiply
    119,500.70x = 164,910.06 × 65,786.63
  4. Step 4: Simplify right side
    119,500.70x = 10,848,876,275.95
  5. Step 5: Solve for x
    x = 10,848,876,275.95/119,500.70
  6. Step 6: Final answer
    x = 90,785.05

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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.