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Finding the Fourth Proportional to 121,273.71, 167,357.81 and 67,558.86

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Solution

The fourth proportional to 121,273.71, 167,357.81 and 67,558.86 is: 93,231.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,273.71 : 167,357.81 = 67,558.86 : x
  2. Step 2: Convert to fraction form
    121,273.71/167,357.81 = 67,558.86/x
  3. Step 3: Cross multiply
    121,273.71x = 167,357.81 × 67,558.86
  4. Step 4: Simplify right side
    121,273.71x = 11,306,503,024.59
  5. Step 5: Solve for x
    x = 11,306,503,024.59/121,273.71
  6. Step 6: Final answer
    x = 93,231.28

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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.