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Finding the Fourth Proportional to 92,815.44, 139,220.64 and 64,324.56

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Solution

The fourth proportional to 92,815.44, 139,220.64 and 64,324.56 is: 96,485.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,815.44 : 139,220.64 = 64,324.56 : x
  2. Step 2: Convert to fraction form
    92,815.44/139,220.64 = 64,324.56/x
  3. Step 3: Cross multiply
    92,815.44x = 139,220.64 × 64,324.56
  4. Step 4: Simplify right side
    92,815.44x = 8,955,306,410.92
  5. Step 5: Solve for x
    x = 8,955,306,410.92/92,815.44
  6. Step 6: Final answer
    x = 96,485.09

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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.