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Finding the Fourth Proportional to 79,906.90, 119,746.12 and 58,680.44

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Solution

The fourth proportional to 79,906.90, 119,746.12 and 58,680.44 is: 87,936.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,906.90 : 119,746.12 = 58,680.44 : x
  2. Step 2: Convert to fraction form
    79,906.90/119,746.12 = 58,680.44/x
  3. Step 3: Cross multiply
    79,906.90x = 119,746.12 × 58,680.44
  4. Step 4: Simplify right side
    79,906.90x = 7,026,755,009.89
  5. Step 5: Solve for x
    x = 7,026,755,009.89/79,906.90
  6. Step 6: Final answer
    x = 87,936.77

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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.