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Finding the Fourth Proportional to 121,350.66, 167,469.12 and 67,635.66

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Solution

The fourth proportional to 121,350.66, 167,469.12 and 67,635.66 is: 93,340.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,350.66 : 167,469.12 = 67,635.66 : x
  2. Step 2: Convert to fraction form
    121,350.66/167,469.12 = 67,635.66/x
  3. Step 3: Cross multiply
    121,350.66x = 167,469.12 × 67,635.66
  4. Step 4: Simplify right side
    121,350.66x = 11,326,884,460.82
  5. Step 5: Solve for x
    x = 11,326,884,460.82/121,350.66
  6. Step 6: Final answer
    x = 93,340.11

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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.