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Finding the Fourth Proportional to 103,489.84, 155,251.16 and 33,352.75

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Solution

The fourth proportional to 103,489.84, 155,251.16 and 33,352.75 is: 50,034.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,489.84 : 155,251.16 = 33,352.75 : x
  2. Step 2: Convert to fraction form
    103,489.84/155,251.16 = 33,352.75/x
  3. Step 3: Cross multiply
    103,489.84x = 155,251.16 × 33,352.75
  4. Step 4: Simplify right side
    103,489.84x = 5,178,053,126.69
  5. Step 5: Solve for x
    x = 5,178,053,126.69/103,489.84
  6. Step 6: Final answer
    x = 50,034.41

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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.