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Finding the Fourth Proportional to 50,911.20, 76,399.20 and 29,851.20

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Solution

The fourth proportional to 50,911.20, 76,399.20 and 29,851.20 is: 44,795.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,911.20 : 76,399.20 = 29,851.20 : x
  2. Step 2: Convert to fraction form
    50,911.20/76,399.20 = 29,851.20/x
  3. Step 3: Cross multiply
    50,911.20x = 76,399.20 × 29,851.20
  4. Step 4: Simplify right side
    50,911.20x = 2,280,607,799.04
  5. Step 5: Solve for x
    x = 2,280,607,799.04/50,911.20
  6. Step 6: Final answer
    x = 44,795.80

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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.