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Finding the Fourth Proportional to 61,067, 91,740.84 and 43,341.67

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Solution

The fourth proportional to 61,067, 91,740.84 and 43,341.67 is: 65,112.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,067 : 91,740.84 = 43,341.67 : x
  2. Step 2: Convert to fraction form
    61,067/91,740.84 = 43,341.67/x
  3. Step 3: Cross multiply
    61,067x = 91,740.84 × 43,341.67
  4. Step 4: Simplify right side
    61,067x = 3,976,200,996.09
  5. Step 5: Solve for x
    x = 3,976,200,996.09/61,067
  6. Step 6: Final answer
    x = 65,112.11

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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.