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Finding the Fourth Proportional to 68,103.59, 94,029.26 and 42,620.28

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Solution

The fourth proportional to 68,103.59, 94,029.26 and 42,620.28 is: 58,844.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,103.59 : 94,029.26 = 42,620.28 : x
  2. Step 2: Convert to fraction form
    68,103.59/94,029.26 = 42,620.28/x
  3. Step 3: Cross multiply
    68,103.59x = 94,029.26 × 42,620.28
  4. Step 4: Simplify right side
    68,103.59x = 4,007,552,823.68
  5. Step 5: Solve for x
    x = 4,007,552,823.68/68,103.59
  6. Step 6: Final answer
    x = 58,844.96

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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.