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Finding the Fourth Proportional to 66,354.73, 99,548.96 and 19,607.61

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Solution

The fourth proportional to 66,354.73, 99,548.96 and 19,607.61 is: 29,416.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,354.73 : 99,548.96 = 19,607.61 : x
  2. Step 2: Convert to fraction form
    66,354.73/99,548.96 = 19,607.61/x
  3. Step 3: Cross multiply
    66,354.73x = 99,548.96 × 19,607.61
  4. Step 4: Simplify right side
    66,354.73x = 1,951,917,183.59
  5. Step 5: Solve for x
    x = 1,951,917,183.59/66,354.73
  6. Step 6: Final answer
    x = 29,416.40

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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.