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Finding the Fourth Proportional to 68,381.04, 94,353.36 and 51,994.96

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Solution

The fourth proportional to 68,381.04, 94,353.36 and 51,994.96 is: 71,743.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,381.04 : 94,353.36 = 51,994.96 : x
  2. Step 2: Convert to fraction form
    68,381.04/94,353.36 = 51,994.96/x
  3. Step 3: Cross multiply
    68,381.04x = 94,353.36 × 51,994.96
  4. Step 4: Simplify right side
    68,381.04x = 4,905,899,179.07
  5. Step 5: Solve for x
    x = 4,905,899,179.07/68,381.04
  6. Step 6: Final answer
    x = 71,743.56

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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.