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Finding the Fourth Proportional to 68,780.59, 94,876.90 and 43,246.49

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Solution

The fourth proportional to 68,780.59, 94,876.90 and 43,246.49 is: 59,654.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,780.59 : 94,876.90 = 43,246.49 : x
  2. Step 2: Convert to fraction form
    68,780.59/94,876.90 = 43,246.49/x
  3. Step 3: Cross multiply
    68,780.59x = 94,876.90 × 43,246.49
  4. Step 4: Simplify right side
    68,780.59x = 4,103,093,101.52
  5. Step 5: Solve for x
    x = 4,103,093,101.52/68,780.59
  6. Step 6: Final answer
    x = 59,654.81

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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.