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Finding the Fourth Proportional to 68,910.67, 103,390.53 and 33,874.93

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Solution

The fourth proportional to 68,910.67, 103,390.53 and 33,874.93 is: 50,824.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,910.67 : 103,390.53 = 33,874.93 : x
  2. Step 2: Convert to fraction form
    68,910.67/103,390.53 = 33,874.93/x
  3. Step 3: Cross multiply
    68,910.67x = 103,390.53 × 33,874.93
  4. Step 4: Simplify right side
    68,910.67x = 3,502,346,966.41
  5. Step 5: Solve for x
    x = 3,502,346,966.41/68,910.67
  6. Step 6: Final answer
    x = 50,824.45

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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.