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Finding the Fourth Proportional to 68,362.56, 94,311.21 and 42,851.49

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Solution

The fourth proportional to 68,362.56, 94,311.21 and 42,851.49 is: 59,116.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,362.56 : 94,311.21 = 42,851.49 : x
  2. Step 2: Convert to fraction form
    68,362.56/94,311.21 = 42,851.49/x
  3. Step 3: Cross multiply
    68,362.56x = 94,311.21 × 42,851.49
  4. Step 4: Simplify right side
    68,362.56x = 4,041,375,872.20
  5. Step 5: Solve for x
    x = 4,041,375,872.20/68,362.56
  6. Step 6: Final answer
    x = 59,116.80

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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.