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Finding the Fourth Proportional to 79,226.28, 118,759.44 and 49,664.87

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Solution

The fourth proportional to 79,226.28, 118,759.44 and 49,664.87 is: 74,447.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,226.28 : 118,759.44 = 49,664.87 : x
  2. Step 2: Convert to fraction form
    79,226.28/118,759.44 = 49,664.87/x
  3. Step 3: Cross multiply
    79,226.28x = 118,759.44 × 49,664.87
  4. Step 4: Simplify right side
    79,226.28x = 5,898,172,148.87
  5. Step 5: Solve for x
    x = 5,898,172,148.87/79,226.28
  6. Step 6: Final answer
    x = 74,447.17

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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.