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Finding the Fourth Proportional to 218,626.52, 301,705.22 and 126,763.61

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Solution

The fourth proportional to 218,626.52, 301,705.22 and 126,763.61 is: 174,934.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,626.52 : 301,705.22 = 126,763.61 : x
  2. Step 2: Convert to fraction form
    218,626.52/301,705.22 = 126,763.61/x
  3. Step 3: Cross multiply
    218,626.52x = 301,705.22 × 126,763.61
  4. Step 4: Simplify right side
    218,626.52x = 38,245,241,651.43
  5. Step 5: Solve for x
    x = 38,245,241,651.43/218,626.52
  6. Step 6: Final answer
    x = 174,934.14

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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.