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Finding the Fourth Proportional to 68,735.82, 94,627.08 and 61,649.94

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Solution

The fourth proportional to 68,735.82, 94,627.08 and 61,649.94 is: 84,872.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,735.82 : 94,627.08 = 61,649.94 : x
  2. Step 2: Convert to fraction form
    68,735.82/94,627.08 = 61,649.94/x
  3. Step 3: Cross multiply
    68,735.82x = 94,627.08 × 61,649.94
  4. Step 4: Simplify right side
    68,735.82x = 5,833,753,804.38
  5. Step 5: Solve for x
    x = 5,833,753,804.38/68,735.82
  6. Step 6: Final answer
    x = 84,872.11

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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.