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Finding the Fourth Proportional to 75,173.70, 103,739.75 and 41,183.42

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Solution

The fourth proportional to 75,173.70, 103,739.75 and 41,183.42 is: 56,833.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,173.70 : 103,739.75 = 41,183.42 : x
  2. Step 2: Convert to fraction form
    75,173.70/103,739.75 = 41,183.42/x
  3. Step 3: Cross multiply
    75,173.70x = 103,739.75 × 41,183.42
  4. Step 4: Simplify right side
    75,173.70x = 4,272,357,694.95
  5. Step 5: Solve for x
    x = 4,272,357,694.95/75,173.70
  6. Step 6: Final answer
    x = 56,833.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.