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Finding the Fourth Proportional to 66,491.09, 91,773.09 and 43,834.08

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Solution

The fourth proportional to 66,491.09, 91,773.09 and 43,834.08 is: 60,501.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,491.09 : 91,773.09 = 43,834.08 : x
  2. Step 2: Convert to fraction form
    66,491.09/91,773.09 = 43,834.08/x
  3. Step 3: Cross multiply
    66,491.09x = 91,773.09 × 43,834.08
  4. Step 4: Simplify right side
    66,491.09x = 4,022,788,968.91
  5. Step 5: Solve for x
    x = 4,022,788,968.91/66,491.09
  6. Step 6: Final answer
    x = 60,501.18

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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.