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Finding the Fourth Proportional to 136,633.03, 205,019.22 and 92,166.59

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Solution

The fourth proportional to 136,633.03, 205,019.22 and 92,166.59 is: 138,296.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,633.03 : 205,019.22 = 92,166.59 : x
  2. Step 2: Convert to fraction form
    136,633.03/205,019.22 = 92,166.59/x
  3. Step 3: Cross multiply
    136,633.03x = 205,019.22 × 92,166.59
  4. Step 4: Simplify right side
    136,633.03x = 18,895,922,391.86
  5. Step 5: Solve for x
    x = 18,895,922,391.86/136,633.03
  6. Step 6: Final answer
    x = 138,296.88

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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.