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Finding the Fourth Proportional to 222,291.54, 306,742.86 and 125,490.06

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Solution

The fourth proportional to 222,291.54, 306,742.86 and 125,490.06 is: 173,165.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,291.54 : 306,742.86 = 125,490.06 : x
  2. Step 2: Convert to fraction form
    222,291.54/306,742.86 = 125,490.06/x
  3. Step 3: Cross multiply
    222,291.54x = 306,742.86 × 125,490.06
  4. Step 4: Simplify right side
    222,291.54x = 38,493,179,905.97
  5. Step 5: Solve for x
    x = 38,493,179,905.97/222,291.54
  6. Step 6: Final answer
    x = 173,165.29

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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.