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Finding the Fourth Proportional to 121,475.33, 167,634.80 and 67,028.00

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Solution

The fourth proportional to 121,475.33, 167,634.80 and 67,028.00 is: 92,498.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,475.33 : 167,634.80 = 67,028.00 : x
  2. Step 2: Convert to fraction form
    121,475.33/167,634.80 = 67,028.00/x
  3. Step 3: Cross multiply
    121,475.33x = 167,634.80 × 67,028.00
  4. Step 4: Simplify right side
    121,475.33x = 11,236,224,201.09
  5. Step 5: Solve for x
    x = 11,236,224,201.09/121,475.33
  6. Step 6: Final answer
    x = 92,498.00

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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.