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Finding the Fourth Proportional to 125,444.70, 173,105.91 and 68,855.67

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Solution

The fourth proportional to 125,444.70, 173,105.91 and 68,855.67 is: 95,016.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,444.70 : 173,105.91 = 68,855.67 : x
  2. Step 2: Convert to fraction form
    125,444.70/173,105.91 = 68,855.67/x
  3. Step 3: Cross multiply
    125,444.70x = 173,105.91 × 68,855.67
  4. Step 4: Simplify right side
    125,444.70x = 11,919,323,414.01
  5. Step 5: Solve for x
    x = 11,919,323,414.01/125,444.70
  6. Step 6: Final answer
    x = 95,016.56

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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.