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Finding the Fourth Proportional to 66,199.92, 91,334.89 and 41,064

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Solution

The fourth proportional to 66,199.92, 91,334.89 and 41,064 is: 56,655.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,199.92 : 91,334.89 = 41,064 : x
  2. Step 2: Convert to fraction form
    66,199.92/91,334.89 = 41,064/x
  3. Step 3: Cross multiply
    66,199.92x = 91,334.89 × 41,064
  4. Step 4: Simplify right side
    66,199.92x = 3,750,575,922.96
  5. Step 5: Solve for x
    x = 3,750,575,922.96/66,199.92
  6. Step 6: Final answer
    x = 56,655.29

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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.