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Finding the Fourth Proportional to 75,609.72, 113,419.80 and 25,669.44

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Solution

The fourth proportional to 75,609.72, 113,419.80 and 25,669.44 is: 38,505.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,609.72 : 113,419.80 = 25,669.44 : x
  2. Step 2: Convert to fraction form
    75,609.72/113,419.80 = 25,669.44/x
  3. Step 3: Cross multiply
    75,609.72x = 113,419.80 × 25,669.44
  4. Step 4: Simplify right side
    75,609.72x = 2,911,422,750.91
  5. Step 5: Solve for x
    x = 2,911,422,750.91/75,609.72
  6. Step 6: Final answer
    x = 38,505.93

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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.