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Finding the Fourth Proportional to 68,935.24, 103,323.48 and 39,374.29

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Solution

The fourth proportional to 68,935.24, 103,323.48 and 39,374.29 is: 59,016.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,935.24 : 103,323.48 = 39,374.29 : x
  2. Step 2: Convert to fraction form
    68,935.24/103,323.48 = 39,374.29/x
  3. Step 3: Cross multiply
    68,935.24x = 103,323.48 × 39,374.29
  4. Step 4: Simplify right side
    68,935.24x = 4,068,288,665.33
  5. Step 5: Solve for x
    x = 4,068,288,665.33/68,935.24
  6. Step 6: Final answer
    x = 59,016.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.