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Finding the Fourth Proportional to 76,609.53, 114,917.33 and 26,694.70

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Solution

The fourth proportional to 76,609.53, 114,917.33 and 26,694.70 is: 40,043.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,609.53 : 114,917.33 = 26,694.70 : x
  2. Step 2: Convert to fraction form
    76,609.53/114,917.33 = 26,694.70/x
  3. Step 3: Cross multiply
    76,609.53x = 114,917.33 × 26,694.70
  4. Step 4: Simplify right side
    76,609.53x = 3,067,683,428.59
  5. Step 5: Solve for x
    x = 3,067,683,428.59/76,609.53
  6. Step 6: Final answer
    x = 40,043.10

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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.