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Finding the Fourth Proportional to 202,958.07, 304,442.58 and 90,611.88

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Solution

The fourth proportional to 202,958.07, 304,442.58 and 90,611.88 is: 135,920.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,958.07 : 304,442.58 = 90,611.88 : x
  2. Step 2: Convert to fraction form
    202,958.07/304,442.58 = 90,611.88/x
  3. Step 3: Cross multiply
    202,958.07x = 304,442.58 × 90,611.88
  4. Step 4: Simplify right side
    202,958.07x = 27,586,114,525.85
  5. Step 5: Solve for x
    x = 27,586,114,525.85/202,958.07
  6. Step 6: Final answer
    x = 135,920.26

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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.