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Finding the Fourth Proportional to 172,634.90, 258,935.94 and 60,294.38

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Solution

The fourth proportional to 172,634.90, 258,935.94 and 60,294.38 is: 90,435.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,634.90 : 258,935.94 = 60,294.38 : x
  2. Step 2: Convert to fraction form
    172,634.90/258,935.94 = 60,294.38/x
  3. Step 3: Cross multiply
    172,634.90x = 258,935.94 × 60,294.38
  4. Step 4: Simplify right side
    172,634.90x = 15,612,380,667.34
  5. Step 5: Solve for x
    x = 15,612,380,667.34/172,634.90
  6. Step 6: Final answer
    x = 90,435.83

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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.