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Finding the Fourth Proportional to 125,963.68, 188,942.37 and 51,063.79

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Solution

The fourth proportional to 125,963.68, 188,942.37 and 51,063.79 is: 76,594.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,963.68 : 188,942.37 = 51,063.79 : x
  2. Step 2: Convert to fraction form
    125,963.68/188,942.37 = 51,063.79/x
  3. Step 3: Cross multiply
    125,963.68x = 188,942.37 × 51,063.79
  4. Step 4: Simplify right side
    125,963.68x = 9,648,113,503.78
  5. Step 5: Solve for x
    x = 9,648,113,503.78/125,963.68
  6. Step 6: Final answer
    x = 76,594.41

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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.