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Finding the Fourth Proportional to 235,522.92, 353,198.92 and 128,986.04

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Solution

The fourth proportional to 235,522.92, 353,198.92 and 128,986.04 is: 193,432.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,522.92 : 353,198.92 = 128,986.04 : x
  2. Step 2: Convert to fraction form
    235,522.92/353,198.92 = 128,986.04/x
  3. Step 3: Cross multiply
    235,522.92x = 353,198.92 × 128,986.04
  4. Step 4: Simplify right side
    235,522.92x = 45,557,730,023.08
  5. Step 5: Solve for x
    x = 45,557,730,023.08/235,522.92
  6. Step 6: Final answer
    x = 193,432.26

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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.