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Finding the Fourth Proportional to 240,694.80, 361,104.84 and 90,936.24

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Solution

The fourth proportional to 240,694.80, 361,104.84 and 90,936.24 is: 136,428.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,694.80 : 361,104.84 = 90,936.24 : x
  2. Step 2: Convert to fraction form
    240,694.80/361,104.84 = 90,936.24/x
  3. Step 3: Cross multiply
    240,694.80x = 361,104.84 × 90,936.24
  4. Step 4: Simplify right side
    240,694.80x = 32,837,516,395.40
  5. Step 5: Solve for x
    x = 32,837,516,395.40/240,694.80
  6. Step 6: Final answer
    x = 136,428.03

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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.