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Finding the Fourth Proportional to 96,697.76, 145,046.44 and 54,558.71

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Solution

The fourth proportional to 96,697.76, 145,046.44 and 54,558.71 is: 81,837.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,697.76 : 145,046.44 = 54,558.71 : x
  2. Step 2: Convert to fraction form
    96,697.76/145,046.44 = 54,558.71/x
  3. Step 3: Cross multiply
    96,697.76x = 145,046.44 × 54,558.71
  4. Step 4: Simplify right side
    96,697.76x = 7,913,546,882.71
  5. Step 5: Solve for x
    x = 7,913,546,882.71/96,697.76
  6. Step 6: Final answer
    x = 81,837.96

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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.