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Finding the Fourth Proportional to 121,069.76, 167,073.74 and 67,353.62

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Solution

The fourth proportional to 121,069.76, 167,073.74 and 67,353.62 is: 92,946.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,069.76 : 167,073.74 = 67,353.62 : x
  2. Step 2: Convert to fraction form
    121,069.76/167,073.74 = 67,353.62/x
  3. Step 3: Cross multiply
    121,069.76x = 167,073.74 × 67,353.62
  4. Step 4: Simplify right side
    121,069.76x = 11,253,021,195.94
  5. Step 5: Solve for x
    x = 11,253,021,195.94/121,069.76
  6. Step 6: Final answer
    x = 92,946.59

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1.5x scale

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.