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Finding the Fourth Proportional to 78,008.61, 116,906.85 and 32,992.53

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Solution

The fourth proportional to 78,008.61, 116,906.85 and 32,992.53 is: 49,443.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,008.61 : 116,906.85 = 32,992.53 : x
  2. Step 2: Convert to fraction form
    78,008.61/116,906.85 = 32,992.53/x
  3. Step 3: Cross multiply
    78,008.61x = 116,906.85 × 32,992.53
  4. Step 4: Simplify right side
    78,008.61x = 3,857,052,755.83
  5. Step 5: Solve for x
    x = 3,857,052,755.83/78,008.61
  6. Step 6: Final answer
    x = 49,443.94

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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.