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Finding the Fourth Proportional to 70,563.20, 105,844.80 and 50,799.20

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Solution

The fourth proportional to 70,563.20, 105,844.80 and 50,799.20 is: 76,198.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,563.20 : 105,844.80 = 50,799.20 : x
  2. Step 2: Convert to fraction form
    70,563.20/105,844.80 = 50,799.20/x
  3. Step 3: Cross multiply
    70,563.20x = 105,844.80 × 50,799.20
  4. Step 4: Simplify right side
    70,563.20x = 5,376,831,164.16
  5. Step 5: Solve for x
    x = 5,376,831,164.16/70,563.20
  6. Step 6: Final answer
    x = 76,198.80

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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.