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Finding the Fourth Proportional to 75,518.70, 113,274.45 and 25,593.90

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Solution

The fourth proportional to 75,518.70, 113,274.45 and 25,593.90 is: 38,389.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,518.70 : 113,274.45 = 25,593.90 : x
  2. Step 2: Convert to fraction form
    75,518.70/113,274.45 = 25,593.90/x
  3. Step 3: Cross multiply
    75,518.70x = 113,274.45 × 25,593.90
  4. Step 4: Simplify right side
    75,518.70x = 2,899,134,945.86
  5. Step 5: Solve for x
    x = 2,899,134,945.86/75,518.70
  6. Step 6: Final answer
    x = 38,389.63

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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.