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Finding the Fourth Proportional to 225,773.84, 338,863.80 and 120,682.64

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Solution

The fourth proportional to 225,773.84, 338,863.80 and 120,682.64 is: 181,132.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,773.84 : 338,863.80 = 120,682.64 : x
  2. Step 2: Convert to fraction form
    225,773.84/338,863.80 = 120,682.64/x
  3. Step 3: Cross multiply
    225,773.84x = 338,863.80 × 120,682.64
  4. Step 4: Simplify right side
    225,773.84x = 40,894,977,984.43
  5. Step 5: Solve for x
    x = 40,894,977,984.43/225,773.84
  6. Step 6: Final answer
    x = 181,132.49

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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.