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Finding the Fourth Proportional to 66,073.53, 91,181.54 and 35,858.86

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Solution

The fourth proportional to 66,073.53, 91,181.54 and 35,858.86 is: 49,485.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,073.53 : 91,181.54 = 35,858.86 : x
  2. Step 2: Convert to fraction form
    66,073.53/91,181.54 = 35,858.86/x
  3. Step 3: Cross multiply
    66,073.53x = 91,181.54 × 35,858.86
  4. Step 4: Simplify right side
    66,073.53x = 3,269,666,077.44
  5. Step 5: Solve for x
    x = 3,269,666,077.44/66,073.53
  6. Step 6: Final answer
    x = 49,485.26

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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.