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Finding the Fourth Proportional to 61,016.63, 91,664.96 and 43,290.99

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Solution

The fourth proportional to 61,016.63, 91,664.96 and 43,290.99 is: 65,035.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,016.63 : 91,664.96 = 43,290.99 : x
  2. Step 2: Convert to fraction form
    61,016.63/91,664.96 = 43,290.99/x
  3. Step 3: Cross multiply
    61,016.63x = 91,664.96 × 43,290.99
  4. Step 4: Simplify right side
    61,016.63x = 3,968,266,650.26
  5. Step 5: Solve for x
    x = 3,968,266,650.26/61,016.63
  6. Step 6: Final answer
    x = 65,035.83

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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.