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Finding the Fourth Proportional to 119,393.03, 164,759.70 and 65,676.87

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Solution

The fourth proportional to 119,393.03, 164,759.70 and 65,676.87 is: 90,632.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,393.03 : 164,759.70 = 65,676.87 : x
  2. Step 2: Convert to fraction form
    119,393.03/164,759.70 = 65,676.87/x
  3. Step 3: Cross multiply
    119,393.03x = 164,759.70 × 65,676.87
  4. Step 4: Simplify right side
    119,393.03x = 10,820,901,644.43
  5. Step 5: Solve for x
    x = 10,820,901,644.43/119,393.03
  6. Step 6: Final answer
    x = 90,632.61

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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.