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Finding the Fourth Proportional to 68,334.84, 94,299.80 and 40,039.92

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Solution

The fourth proportional to 68,334.84, 94,299.80 and 40,039.92 is: 55,253.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,334.84 : 94,299.80 = 40,039.92 : x
  2. Step 2: Convert to fraction form
    68,334.84/94,299.80 = 40,039.92/x
  3. Step 3: Cross multiply
    68,334.84x = 94,299.80 × 40,039.92
  4. Step 4: Simplify right side
    68,334.84x = 3,775,756,247.82
  5. Step 5: Solve for x
    x = 3,775,756,247.82/68,334.84
  6. Step 6: Final answer
    x = 55,253.75

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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.