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Finding the Fourth Proportional to 167,420.39, 231,042.62 and 90,940.98

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Solution

The fourth proportional to 167,420.39, 231,042.62 and 90,940.98 is: 125,499.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,420.39 : 231,042.62 = 90,940.98 : x
  2. Step 2: Convert to fraction form
    167,420.39/231,042.62 = 90,940.98/x
  3. Step 3: Cross multiply
    167,420.39x = 231,042.62 × 90,940.98
  4. Step 4: Simplify right side
    167,420.39x = 21,011,241,645.51
  5. Step 5: Solve for x
    x = 21,011,241,645.51/167,420.39
  6. Step 6: Final answer
    x = 125,499.90

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.