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Finding the Fourth Proportional to 115,939, 173,958.54 and 62,620.39

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Solution

The fourth proportional to 115,939, 173,958.54 and 62,620.39 is: 93,957.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,939 : 173,958.54 = 62,620.39 : x
  2. Step 2: Convert to fraction form
    115,939/173,958.54 = 62,620.39/x
  3. Step 3: Cross multiply
    115,939x = 173,958.54 × 62,620.39
  4. Step 4: Simplify right side
    115,939x = 10,893,351,618.63
  5. Step 5: Solve for x
    x = 10,893,351,618.63/115,939
  6. Step 6: Final answer
    x = 93,957.61

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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.