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Finding the Fourth Proportional to 85,861.44, 118,491.12 and 48,134.88

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Solution

The fourth proportional to 85,861.44, 118,491.12 and 48,134.88 is: 66,427.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,861.44 : 118,491.12 = 48,134.88 : x
  2. Step 2: Convert to fraction form
    85,861.44/118,491.12 = 48,134.88/x
  3. Step 3: Cross multiply
    85,861.44x = 118,491.12 × 48,134.88
  4. Step 4: Simplify right side
    85,861.44x = 5,703,555,842.27
  5. Step 5: Solve for x
    x = 5,703,555,842.27/85,861.44
  6. Step 6: Final answer
    x = 66,427.44

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1.5x scale

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.