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Finding the Fourth Proportional to 68,335.89, 94,305.87 and 39,653.39

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Solution

The fourth proportional to 68,335.89, 94,305.87 and 39,653.39 is: 54,723.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,335.89 : 94,305.87 = 39,653.39 : x
  2. Step 2: Convert to fraction form
    68,335.89/94,305.87 = 39,653.39/x
  3. Step 3: Cross multiply
    68,335.89x = 94,305.87 × 39,653.39
  4. Step 4: Simplify right side
    68,335.89x = 3,739,547,442.40
  5. Step 5: Solve for x
    x = 3,739,547,442.40/68,335.89
  6. Step 6: Final answer
    x = 54,723.04

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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.