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Finding the Fourth Proportional to 66,796.22, 92,178.74 and 36,581.40

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Solution

The fourth proportional to 66,796.22, 92,178.74 and 36,581.40 is: 50,482.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,796.22 : 92,178.74 = 36,581.40 : x
  2. Step 2: Convert to fraction form
    66,796.22/92,178.74 = 36,581.40/x
  3. Step 3: Cross multiply
    66,796.22x = 92,178.74 × 36,581.40
  4. Step 4: Simplify right side
    66,796.22x = 3,372,027,359.44
  5. Step 5: Solve for x
    x = 3,372,027,359.44/66,796.22
  6. Step 6: Final answer
    x = 50,482.31

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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.