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Finding the Fourth Proportional to 67,079.97, 100,623.40 and 17,160.50

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Solution

The fourth proportional to 67,079.97, 100,623.40 and 17,160.50 is: 25,741.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,079.97 : 100,623.40 = 17,160.50 : x
  2. Step 2: Convert to fraction form
    67,079.97/100,623.40 = 17,160.50/x
  3. Step 3: Cross multiply
    67,079.97x = 100,623.40 × 17,160.50
  4. Step 4: Simplify right side
    67,079.97x = 1,726,747,855.70
  5. Step 5: Solve for x
    x = 1,726,747,855.70/67,079.97
  6. Step 6: Final answer
    x = 25,741.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.