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Finding the Fourth Proportional to 299,711.55, 449,556.95 and 75,073.92

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Solution

The fourth proportional to 299,711.55, 449,556.95 and 75,073.92 is: 112,608.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,711.55 : 449,556.95 = 75,073.92 : x
  2. Step 2: Convert to fraction form
    299,711.55/449,556.95 = 75,073.92/x
  3. Step 3: Cross multiply
    299,711.55x = 449,556.95 × 75,073.92
  4. Step 4: Simplify right side
    299,711.55x = 33,750,001,001.59
  5. Step 5: Solve for x
    x = 33,750,001,001.59/299,711.55
  6. Step 6: Final answer
    x = 112,608.28

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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.