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Finding the Fourth Proportional to 66,768.79, 92,140.95 and 36,556.03

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Solution

The fourth proportional to 66,768.79, 92,140.95 and 36,556.03 is: 50,447.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,768.79 : 92,140.95 = 36,556.03 : x
  2. Step 2: Convert to fraction form
    66,768.79/92,140.95 = 36,556.03/x
  3. Step 3: Cross multiply
    66,768.79x = 92,140.95 × 36,556.03
  4. Step 4: Simplify right side
    66,768.79x = 3,368,307,010.69
  5. Step 5: Solve for x
    x = 3,368,307,010.69/66,768.79
  6. Step 6: Final answer
    x = 50,447.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.