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Finding the Fourth Proportional to 125,984.80, 173,797.76 and 80,626.42

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Solution

The fourth proportional to 125,984.80, 173,797.76 and 80,626.42 is: 111,225.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,984.80 : 173,797.76 = 80,626.42 : x
  2. Step 2: Convert to fraction form
    125,984.80/173,797.76 = 80,626.42/x
  3. Step 3: Cross multiply
    125,984.80x = 173,797.76 × 80,626.42
  4. Step 4: Simplify right side
    125,984.80x = 14,012,691,192.82
  5. Step 5: Solve for x
    x = 14,012,691,192.82/125,984.80
  6. Step 6: Final answer
    x = 111,225.25

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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.