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Finding the Fourth Proportional to 77,665.69, 116,311.68 and 44,284.56

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Solution

The fourth proportional to 77,665.69, 116,311.68 and 44,284.56 is: 66,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,665.69 : 116,311.68 = 44,284.56 : x
  2. Step 2: Convert to fraction form
    77,665.69/116,311.68 = 44,284.56/x
  3. Step 3: Cross multiply
    77,665.69x = 116,311.68 × 44,284.56
  4. Step 4: Simplify right side
    77,665.69x = 5,150,811,571.66
  5. Step 5: Solve for x
    x = 5,150,811,571.66/77,665.69
  6. Step 6: Final answer
    x = 66,320.30

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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.