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Finding the Fourth Proportional to 243,722.56, 365,448 and 75,195.04

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Solution

The fourth proportional to 243,722.56, 365,448 and 75,195.04 is: 112,750.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,722.56 : 365,448 = 75,195.04 : x
  2. Step 2: Convert to fraction form
    243,722.56/365,448 = 75,195.04/x
  3. Step 3: Cross multiply
    243,722.56x = 365,448 × 75,195.04
  4. Step 4: Simplify right side
    243,722.56x = 27,479,876,977.92
  5. Step 5: Solve for x
    x = 27,479,876,977.92/243,722.56
  6. Step 6: Final answer
    x = 112,750.65

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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.