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Finding the Fourth Proportional to 68,757.11, 94,883.11 and 38,130.03

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Solution

The fourth proportional to 68,757.11, 94,883.11 and 38,130.03 is: 52,618.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,757.11 : 94,883.11 = 38,130.03 : x
  2. Step 2: Convert to fraction form
    68,757.11/94,883.11 = 38,130.03/x
  3. Step 3: Cross multiply
    68,757.11x = 94,883.11 × 38,130.03
  4. Step 4: Simplify right side
    68,757.11x = 3,617,895,735.47
  5. Step 5: Solve for x
    x = 3,617,895,735.47/68,757.11
  6. Step 6: Final answer
    x = 52,618.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.