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Finding the Fourth Proportional to 68,676.06, 94,791.30 and 64,494.03

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Solution

The fourth proportional to 68,676.06, 94,791.30 and 64,494.03 is: 89,018.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,676.06 : 94,791.30 = 64,494.03 : x
  2. Step 2: Convert to fraction form
    68,676.06/94,791.30 = 64,494.03/x
  3. Step 3: Cross multiply
    68,676.06x = 94,791.30 × 64,494.03
  4. Step 4: Simplify right side
    68,676.06x = 6,113,472,945.94
  5. Step 5: Solve for x
    x = 6,113,472,945.94/68,676.06
  6. Step 6: Final answer
    x = 89,018.98

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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.