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Finding the Fourth Proportional to 111,999.09, 168,023.22 and 82,326.97

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Solution

The fourth proportional to 111,999.09, 168,023.22 and 82,326.97 is: 123,508.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,999.09 : 168,023.22 = 82,326.97 : x
  2. Step 2: Convert to fraction form
    111,999.09/168,023.22 = 82,326.97/x
  3. Step 3: Cross multiply
    111,999.09x = 168,023.22 × 82,326.97
  4. Step 4: Simplify right side
    111,999.09x = 13,832,842,304.49
  5. Step 5: Solve for x
    x = 13,832,842,304.49/111,999.09
  6. Step 6: Final answer
    x = 123,508.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.