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Finding the Fourth Proportional to 96,967.92, 145,218.60 and 55,288.56

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Solution

The fourth proportional to 96,967.92, 145,218.60 and 55,288.56 is: 82,799.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,967.92 : 145,218.60 = 55,288.56 : x
  2. Step 2: Convert to fraction form
    96,967.92/145,218.60 = 55,288.56/x
  3. Step 3: Cross multiply
    96,967.92x = 145,218.60 × 55,288.56
  4. Step 4: Simplify right side
    96,967.92x = 8,028,927,279.22
  5. Step 5: Solve for x
    x = 8,028,927,279.22/96,967.92
  6. Step 6: Final answer
    x = 82,799.83

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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.