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Finding the Fourth Proportional to 126,626.88, 174,753.81 and 72,926.04

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Solution

The fourth proportional to 126,626.88, 174,753.81 and 72,926.04 is: 100,642.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,626.88 : 174,753.81 = 72,926.04 : x
  2. Step 2: Convert to fraction form
    126,626.88/174,753.81 = 72,926.04/x
  3. Step 3: Cross multiply
    126,626.88x = 174,753.81 × 72,926.04
  4. Step 4: Simplify right side
    126,626.88x = 12,744,103,338.21
  5. Step 5: Solve for x
    x = 12,744,103,338.21/126,626.88
  6. Step 6: Final answer
    x = 100,642.95

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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.