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Finding the Fourth Proportional to 85,240.44, 127,797.64 and 29,065.68

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Solution

The fourth proportional to 85,240.44, 127,797.64 and 29,065.68 is: 43,577.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,240.44 : 127,797.64 = 29,065.68 : x
  2. Step 2: Convert to fraction form
    85,240.44/127,797.64 = 29,065.68/x
  3. Step 3: Cross multiply
    85,240.44x = 127,797.64 × 29,065.68
  4. Step 4: Simplify right side
    85,240.44x = 3,714,525,309.00
  5. Step 5: Solve for x
    x = 3,714,525,309.00/85,240.44
  6. Step 6: Final answer
    x = 43,577.03

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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.