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Finding the Fourth Proportional to 139,716.77, 209,575.22 and 46,222.52

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Solution

The fourth proportional to 139,716.77, 209,575.22 and 46,222.52 is: 69,333.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,716.77 : 209,575.22 = 46,222.52 : x
  2. Step 2: Convert to fraction form
    139,716.77/209,575.22 = 46,222.52/x
  3. Step 3: Cross multiply
    139,716.77x = 209,575.22 × 46,222.52
  4. Step 4: Simplify right side
    139,716.77x = 9,687,093,518.97
  5. Step 5: Solve for x
    x = 9,687,093,518.97/139,716.77
  6. Step 6: Final answer
    x = 69,333.79

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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.