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Finding the Fourth Proportional to 121,469.40, 167,628.04 and 67,753.04

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Solution

The fourth proportional to 121,469.40, 167,628.04 and 67,753.04 is: 93,499.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,469.40 : 167,628.04 = 67,753.04 : x
  2. Step 2: Convert to fraction form
    121,469.40/167,628.04 = 67,753.04/x
  3. Step 3: Cross multiply
    121,469.40x = 167,628.04 × 67,753.04
  4. Step 4: Simplify right side
    121,469.40x = 11,357,309,299.24
  5. Step 5: Solve for x
    x = 11,357,309,299.24/121,469.40
  6. Step 6: Final answer
    x = 93,499.34

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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.