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Finding the Fourth Proportional to 74,679.48, 103,057.62 and 41,145.48

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Solution

The fourth proportional to 74,679.48, 103,057.62 and 41,145.48 is: 56,780.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,679.48 : 103,057.62 = 41,145.48 : x
  2. Step 2: Convert to fraction form
    74,679.48/103,057.62 = 41,145.48/x
  3. Step 3: Cross multiply
    74,679.48x = 103,057.62 × 41,145.48
  4. Step 4: Simplify right side
    74,679.48x = 4,240,355,242.56
  5. Step 5: Solve for x
    x = 4,240,355,242.56/74,679.48
  6. Step 6: Final answer
    x = 56,780.73

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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.