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Finding the Fourth Proportional to 121,309.77, 167,405.23 and 67,593.65

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Solution

The fourth proportional to 121,309.77, 167,405.23 and 67,593.65 is: 93,277.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,309.77 : 167,405.23 = 67,593.65 : x
  2. Step 2: Convert to fraction form
    121,309.77/167,405.23 = 67,593.65/x
  3. Step 3: Cross multiply
    121,309.77x = 167,405.23 × 67,593.65
  4. Step 4: Simplify right side
    121,309.77x = 11,315,529,772.26
  5. Step 5: Solve for x
    x = 11,315,529,772.26/121,309.77
  6. Step 6: Final answer
    x = 93,277.97

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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.