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Finding the Fourth Proportional to 76,668.93, 114,998.54 and 36,716.39

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Solution

The fourth proportional to 76,668.93, 114,998.54 and 36,716.39 is: 55,072.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,668.93 : 114,998.54 = 36,716.39 : x
  2. Step 2: Convert to fraction form
    76,668.93/114,998.54 = 36,716.39/x
  3. Step 3: Cross multiply
    76,668.93x = 114,998.54 × 36,716.39
  4. Step 4: Simplify right side
    76,668.93x = 4,222,330,916.74
  5. Step 5: Solve for x
    x = 4,222,330,916.74/76,668.93
  6. Step 6: Final answer
    x = 55,072.26

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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.