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Finding the Fourth Proportional to 85,190.88, 127,786.32 and 29,773.92

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Solution

The fourth proportional to 85,190.88, 127,786.32 and 29,773.92 is: 44,660.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,190.88 : 127,786.32 = 29,773.92 : x
  2. Step 2: Convert to fraction form
    85,190.88/127,786.32 = 29,773.92/x
  3. Step 3: Cross multiply
    85,190.88x = 127,786.32 × 29,773.92
  4. Step 4: Simplify right side
    85,190.88x = 3,804,699,668.77
  5. Step 5: Solve for x
    x = 3,804,699,668.77/85,190.88
  6. Step 6: Final answer
    x = 44,660.88

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.