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Finding the Fourth Proportional to 58,851.92, 81,149.68 and 55,119.44

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Solution

The fourth proportional to 58,851.92, 81,149.68 and 55,119.44 is: 76,003.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,851.92 : 81,149.68 = 55,119.44 : x
  2. Step 2: Convert to fraction form
    58,851.92/81,149.68 = 55,119.44/x
  3. Step 3: Cross multiply
    58,851.92x = 81,149.68 × 55,119.44
  4. Step 4: Simplify right side
    58,851.92x = 4,472,924,917.78
  5. Step 5: Solve for x
    x = 4,472,924,917.78/58,851.92
  6. Step 6: Final answer
    x = 76,003.04

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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.