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Finding the Fourth Proportional to 68,758.96, 94,882.44 and 40,460.80

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Solution

The fourth proportional to 68,758.96, 94,882.44 and 40,460.80 is: 55,833.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,758.96 : 94,882.44 = 40,460.80 : x
  2. Step 2: Convert to fraction form
    68,758.96/94,882.44 = 40,460.80/x
  3. Step 3: Cross multiply
    68,758.96x = 94,882.44 × 40,460.80
  4. Step 4: Simplify right side
    68,758.96x = 3,839,019,428.35
  5. Step 5: Solve for x
    x = 3,839,019,428.35/68,758.96
  6. Step 6: Final answer
    x = 55,833.01

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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.