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Finding the Fourth Proportional to 56,799.92, 78,383.96 and 32,940.45

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Solution

The fourth proportional to 56,799.92, 78,383.96 and 32,940.45 is: 45,457.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,799.92 : 78,383.96 = 32,940.45 : x
  2. Step 2: Convert to fraction form
    56,799.92/78,383.96 = 32,940.45/x
  3. Step 3: Cross multiply
    56,799.92x = 78,383.96 × 32,940.45
  4. Step 4: Simplify right side
    56,799.92x = 2,582,002,750.48
  5. Step 5: Solve for x
    x = 2,582,002,750.48/56,799.92
  6. Step 6: Final answer
    x = 45,457.86

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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.