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Finding the Fourth Proportional to 239,857.44, 359,720.52 and 90,086.16

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Solution

The fourth proportional to 239,857.44, 359,720.52 and 90,086.16 is: 135,104.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,857.44 : 359,720.52 = 90,086.16 : x
  2. Step 2: Convert to fraction form
    239,857.44/359,720.52 = 90,086.16/x
  3. Step 3: Cross multiply
    239,857.44x = 359,720.52 × 90,086.16
  4. Step 4: Simplify right side
    239,857.44x = 32,405,840,320.00
  5. Step 5: Solve for x
    x = 32,405,840,320.00/239,857.44
  6. Step 6: Final answer
    x = 135,104.59

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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.