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Finding the Fourth Proportional to 121,627.68, 167,846.13 and 67,912.67

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Solution

The fourth proportional to 121,627.68, 167,846.13 and 67,912.67 is: 93,719.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,627.68 : 167,846.13 = 67,912.67 : x
  2. Step 2: Convert to fraction form
    121,627.68/167,846.13 = 67,912.67/x
  3. Step 3: Cross multiply
    121,627.68x = 167,846.13 × 67,912.67
  4. Step 4: Simplify right side
    121,627.68x = 11,398,877,998.24
  5. Step 5: Solve for x
    x = 11,398,877,998.24/121,627.68
  6. Step 6: Final answer
    x = 93,719.44

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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.