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Finding the Fourth Proportional to 68,846.76, 94,996.92 and 40,558.08

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Solution

The fourth proportional to 68,846.76, 94,996.92 and 40,558.08 is: 55,963.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,846.76 : 94,996.92 = 40,558.08 : x
  2. Step 2: Convert to fraction form
    68,846.76/94,996.92 = 40,558.08/x
  3. Step 3: Cross multiply
    68,846.76x = 94,996.92 × 40,558.08
  4. Step 4: Simplify right side
    68,846.76x = 3,852,892,681.11
  5. Step 5: Solve for x
    x = 3,852,892,681.11/68,846.76
  6. Step 6: Final answer
    x = 55,963.31

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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.