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Finding the Fourth Proportional to 103,687.91, 155,556.56 and 33,567.22

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Solution

The fourth proportional to 103,687.91, 155,556.56 and 33,567.22 is: 50,358.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,687.91 : 155,556.56 = 33,567.22 : x
  2. Step 2: Convert to fraction form
    103,687.91/155,556.56 = 33,567.22/x
  3. Step 3: Cross multiply
    103,687.91x = 155,556.56 × 33,567.22
  4. Step 4: Simplify right side
    103,687.91x = 5,221,600,966.99
  5. Step 5: Solve for x
    x = 5,221,600,966.99/103,687.91
  6. Step 6: Final answer
    x = 50,358.82

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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.