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Finding the Fourth Proportional to 225,062.70, 337,611.87 and 75,303.78

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Solution

The fourth proportional to 225,062.70, 337,611.87 and 75,303.78 is: 112,961.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,062.70 : 337,611.87 = 75,303.78 : x
  2. Step 2: Convert to fraction form
    225,062.70/337,611.87 = 75,303.78/x
  3. Step 3: Cross multiply
    225,062.70x = 337,611.87 × 75,303.78
  4. Step 4: Simplify right side
    225,062.70x = 25,423,449,983.87
  5. Step 5: Solve for x
    x = 25,423,449,983.87/225,062.70
  6. Step 6: Final answer
    x = 112,961.63

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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.