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Finding the Fourth Proportional to 68,103.73, 94,029.44 and 42,620.39

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Solution

The fourth proportional to 68,103.73, 94,029.44 and 42,620.39 is: 58,845.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,103.73 : 94,029.44 = 42,620.39 : x
  2. Step 2: Convert to fraction form
    68,103.73/94,029.44 = 42,620.39/x
  3. Step 3: Cross multiply
    68,103.73x = 94,029.44 × 42,620.39
  4. Step 4: Simplify right side
    68,103.73x = 4,007,571,404.28
  5. Step 5: Solve for x
    x = 4,007,571,404.28/68,103.73
  6. Step 6: Final answer
    x = 58,845.11

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1.5x scale

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.