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Finding the Fourth Proportional to 125,424.36, 173,087.01 and 68,834.52

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Solution

The fourth proportional to 125,424.36, 173,087.01 and 68,834.52 is: 94,992.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,424.36 : 173,087.01 = 68,834.52 : x
  2. Step 2: Convert to fraction form
    125,424.36/173,087.01 = 68,834.52/x
  3. Step 3: Cross multiply
    125,424.36x = 173,087.01 × 68,834.52
  4. Step 4: Simplify right side
    125,424.36x = 11,914,361,251.59
  5. Step 5: Solve for x
    x = 11,914,361,251.59/125,424.36
  6. Step 6: Final answer
    x = 94,992.40

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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.