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Finding the Fourth Proportional to 240,696.80, 361,107.84 and 90,938.24

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Solution

The fourth proportional to 240,696.80, 361,107.84 and 90,938.24 is: 136,431.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,696.80 : 361,107.84 = 90,938.24 : x
  2. Step 2: Convert to fraction form
    240,696.80/361,107.84 = 90,938.24/x
  3. Step 3: Cross multiply
    240,696.80x = 361,107.84 × 90,938.24
  4. Step 4: Simplify right side
    240,696.80x = 32,838,511,419.80
  5. Step 5: Solve for x
    x = 32,838,511,419.80/240,696.80
  6. Step 6: Final answer
    x = 136,431.03

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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.