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Finding the Fourth Proportional to 222,083.56, 306,414.66 and 126,555.40

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Solution

The fourth proportional to 222,083.56, 306,414.66 and 126,555.40 is: 174,611.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,083.56 : 306,414.66 = 126,555.40 : x
  2. Step 2: Convert to fraction form
    222,083.56/306,414.66 = 126,555.40/x
  3. Step 3: Cross multiply
    222,083.56x = 306,414.66 × 126,555.40
  4. Step 4: Simplify right side
    222,083.56x = 38,778,429,862.16
  5. Step 5: Solve for x
    x = 38,778,429,862.16/222,083.56
  6. Step 6: Final answer
    x = 174,611.89

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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.