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Finding the Fourth Proportional to 103,771.53, 155,679.17 and 33,645.38

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Solution

The fourth proportional to 103,771.53, 155,679.17 and 33,645.38 is: 50,475.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,771.53 : 155,679.17 = 33,645.38 : x
  2. Step 2: Convert to fraction form
    103,771.53/155,679.17 = 33,645.38/x
  3. Step 3: Cross multiply
    103,771.53x = 155,679.17 × 33,645.38
  4. Step 4: Simplify right side
    103,771.53x = 5,237,883,886.11
  5. Step 5: Solve for x
    x = 5,237,883,886.11/103,771.53
  6. Step 6: Final answer
    x = 50,475.15

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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.