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Finding the Fourth Proportional to 73,229.94, 100,981.89 and 62,654.58

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Solution

The fourth proportional to 73,229.94, 100,981.89 and 62,654.58 is: 86,398.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,229.94 : 100,981.89 = 62,654.58 : x
  2. Step 2: Convert to fraction form
    73,229.94/100,981.89 = 62,654.58/x
  3. Step 3: Cross multiply
    73,229.94x = 100,981.89 × 62,654.58
  4. Step 4: Simplify right side
    73,229.94x = 6,326,977,905.56
  5. Step 5: Solve for x
    x = 6,326,977,905.56/73,229.94
  6. Step 6: Final answer
    x = 86,398.79

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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.