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Finding the Fourth Proportional to 68,019.77, 93,893.44 and 45,350.49

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Solution

The fourth proportional to 68,019.77, 93,893.44 and 45,350.49 is: 62,601.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,019.77 : 93,893.44 = 45,350.49 : x
  2. Step 2: Convert to fraction form
    68,019.77/93,893.44 = 45,350.49/x
  3. Step 3: Cross multiply
    68,019.77x = 93,893.44 × 45,350.49
  4. Step 4: Simplify right side
    68,019.77x = 4,258,113,511.79
  5. Step 5: Solve for x
    x = 4,258,113,511.79/68,019.77
  6. Step 6: Final answer
    x = 62,601.12

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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.