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Finding the Fourth Proportional to 121,262.73, 167,345.48 and 67,548.60

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Solution

The fourth proportional to 121,262.73, 167,345.48 and 67,548.60 is: 93,218.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,262.73 : 167,345.48 = 67,548.60 : x
  2. Step 2: Convert to fraction form
    121,262.73/167,345.48 = 67,548.60/x
  3. Step 3: Cross multiply
    121,262.73x = 167,345.48 × 67,548.60
  4. Step 4: Simplify right side
    121,262.73x = 11,303,952,890.33
  5. Step 5: Solve for x
    x = 11,303,952,890.33/121,262.73
  6. Step 6: Final answer
    x = 93,218.69

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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.