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Finding the Fourth Proportional to 125,665.70, 188,632.85 and 50,834.76

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Solution

The fourth proportional to 125,665.70, 188,632.85 and 50,834.76 is: 76,306.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,665.70 : 188,632.85 = 50,834.76 : x
  2. Step 2: Convert to fraction form
    125,665.70/188,632.85 = 50,834.76/x
  3. Step 3: Cross multiply
    125,665.70x = 188,632.85 × 50,834.76
  4. Step 4: Simplify right side
    125,665.70x = 9,589,106,573.85
  5. Step 5: Solve for x
    x = 9,589,106,573.85/125,665.70
  6. Step 6: Final answer
    x = 76,306.47

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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.