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Finding the Fourth Proportional to 68,511.18, 94,560.68 and 41,648

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Solution

The fourth proportional to 68,511.18, 94,560.68 and 41,648 is: 57,483.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,511.18 : 94,560.68 = 41,648 : x
  2. Step 2: Convert to fraction form
    68,511.18/94,560.68 = 41,648/x
  3. Step 3: Cross multiply
    68,511.18x = 94,560.68 × 41,648
  4. Step 4: Simplify right side
    68,511.18x = 3,938,262,992.40
  5. Step 5: Solve for x
    x = 3,938,262,992.40/68,511.18
  6. Step 6: Final answer
    x = 57,483.51

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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.