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Finding the Fourth Proportional to 68,672.21, 94,775.47 and 41,830.43

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Solution

The fourth proportional to 68,672.21, 94,775.47 and 41,830.43 is: 57,730.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,672.21 : 94,775.47 = 41,830.43 : x
  2. Step 2: Convert to fraction form
    68,672.21/94,775.47 = 41,830.43/x
  3. Step 3: Cross multiply
    68,672.21x = 94,775.47 × 41,830.43
  4. Step 4: Simplify right side
    68,672.21x = 3,964,498,085.10
  5. Step 5: Solve for x
    x = 3,964,498,085.10/68,672.21
  6. Step 6: Final answer
    x = 57,730.75

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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.