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Finding the Fourth Proportional to 121,711.38, 167,960.52 and 67,996.24

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Solution

The fourth proportional to 121,711.38, 167,960.52 and 67,996.24 is: 93,834.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,711.38 : 167,960.52 = 67,996.24 : x
  2. Step 2: Convert to fraction form
    121,711.38/167,960.52 = 67,996.24/x
  3. Step 3: Cross multiply
    121,711.38x = 167,960.52 × 67,996.24
  4. Step 4: Simplify right side
    121,711.38x = 11,420,683,828.44
  5. Step 5: Solve for x
    x = 11,420,683,828.44/121,711.38
  6. Step 6: Final answer
    x = 93,834.15

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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.