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Finding the Fourth Proportional to 121,687.68, 167,927.16 and 67,973.48

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Solution

The fourth proportional to 121,687.68, 167,927.16 and 67,973.48 is: 93,802.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,687.68 : 167,927.16 = 67,973.48 : x
  2. Step 2: Convert to fraction form
    121,687.68/167,927.16 = 67,973.48/x
  3. Step 3: Cross multiply
    121,687.68x = 167,927.16 × 67,973.48
  4. Step 4: Simplify right side
    121,687.68x = 11,414,593,451.72
  5. Step 5: Solve for x
    x = 11,414,593,451.72/121,687.68
  6. Step 6: Final answer
    x = 93,802.38

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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.