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Finding the Fourth Proportional to 121,326.66, 167,428.53 and 67,610.52

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Solution

The fourth proportional to 121,326.66, 167,428.53 and 67,610.52 is: 93,301.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,326.66 : 167,428.53 = 67,610.52 : x
  2. Step 2: Convert to fraction form
    121,326.66/167,428.53 = 67,610.52/x
  3. Step 3: Cross multiply
    121,326.66x = 167,428.53 × 67,610.52
  4. Step 4: Simplify right side
    121,326.66x = 11,319,929,976.14
  5. Step 5: Solve for x
    x = 11,319,929,976.14/121,326.66
  6. Step 6: Final answer
    x = 93,301.26

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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.