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Finding the Fourth Proportional to 66,254.85, 91,452.24 and 40,769.01

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Solution

The fourth proportional to 66,254.85, 91,452.24 and 40,769.01 is: 56,273.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,254.85 : 91,452.24 = 40,769.01 : x
  2. Step 2: Convert to fraction form
    66,254.85/91,452.24 = 40,769.01/x
  3. Step 3: Cross multiply
    66,254.85x = 91,452.24 × 40,769.01
  4. Step 4: Simplify right side
    66,254.85x = 3,728,417,287.08
  5. Step 5: Solve for x
    x = 3,728,417,287.08/66,254.85
  6. Step 6: Final answer
    x = 56,273.88

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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.