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Finding the Fourth Proportional to 121,469.90, 167,599.94 and 73,722.14

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Solution

The fourth proportional to 121,469.90, 167,599.94 and 73,722.14 is: 101,719.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,469.90 : 167,599.94 = 73,722.14 : x
  2. Step 2: Convert to fraction form
    121,469.90/167,599.94 = 73,722.14/x
  3. Step 3: Cross multiply
    121,469.90x = 167,599.94 × 73,722.14
  4. Step 4: Simplify right side
    121,469.90x = 12,355,826,240.67
  5. Step 5: Solve for x
    x = 12,355,826,240.67/121,469.90
  6. Step 6: Final answer
    x = 101,719.24

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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.