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Finding the Fourth Proportional to 66,625.44, 91,945.44 and 43,984.32

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Solution

The fourth proportional to 66,625.44, 91,945.44 and 43,984.32 is: 60,699.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,625.44 : 91,945.44 = 43,984.32 : x
  2. Step 2: Convert to fraction form
    66,625.44/91,945.44 = 43,984.32/x
  3. Step 3: Cross multiply
    66,625.44x = 91,945.44 × 43,984.32
  4. Step 4: Simplify right side
    66,625.44x = 4,044,157,655.50
  5. Step 5: Solve for x
    x = 4,044,157,655.50/66,625.44
  6. Step 6: Final answer
    x = 60,699.90

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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.