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Finding the Fourth Proportional to 167,412.54, 231,030.90 and 91,961.04

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Solution

The fourth proportional to 167,412.54, 231,030.90 and 91,961.04 is: 126,907.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,412.54 : 231,030.90 = 91,961.04 : x
  2. Step 2: Convert to fraction form
    167,412.54/231,030.90 = 91,961.04/x
  3. Step 3: Cross multiply
    167,412.54x = 231,030.90 × 91,961.04
  4. Step 4: Simplify right side
    167,412.54x = 21,245,841,836.14
  5. Step 5: Solve for x
    x = 21,245,841,836.14/167,412.54
  6. Step 6: Final answer
    x = 126,907.11

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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.