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Finding the Fourth Proportional to 68,200.79, 94,156.12 and 45,578.09

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Solution

The fourth proportional to 68,200.79, 94,156.12 and 45,578.09 is: 62,923.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,200.79 : 94,156.12 = 45,578.09 : x
  2. Step 2: Convert to fraction form
    68,200.79/94,156.12 = 45,578.09/x
  3. Step 3: Cross multiply
    68,200.79x = 94,156.12 × 45,578.09
  4. Step 4: Simplify right side
    68,200.79x = 4,291,456,403.77
  5. Step 5: Solve for x
    x = 4,291,456,403.77/68,200.79
  6. Step 6: Final answer
    x = 62,923.86

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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.