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Finding the Fourth Proportional to 225,595.88, 338,381.37 and 75,820.71

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Solution

The fourth proportional to 225,595.88, 338,381.37 and 75,820.71 is: 113,726.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,595.88 : 338,381.37 = 75,820.71 : x
  2. Step 2: Convert to fraction form
    225,595.88/338,381.37 = 75,820.71/x
  3. Step 3: Cross multiply
    225,595.88x = 338,381.37 × 75,820.71
  4. Step 4: Simplify right side
    225,595.88x = 25,656,315,302.95
  5. Step 5: Solve for x
    x = 25,656,315,302.95/225,595.88
  6. Step 6: Final answer
    x = 113,726.88

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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.