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Finding the Fourth Proportional to 293,795.96, 440,757.36 and 91,388.21

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Solution

The fourth proportional to 293,795.96, 440,757.36 and 91,388.21 is: 137,102.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,795.96 : 440,757.36 = 91,388.21 : x
  2. Step 2: Convert to fraction form
    293,795.96/440,757.36 = 91,388.21/x
  3. Step 3: Cross multiply
    293,795.96x = 440,757.36 × 91,388.21
  4. Step 4: Simplify right side
    293,795.96x = 40,280,023,970.94
  5. Step 5: Solve for x
    x = 40,280,023,970.94/293,795.96
  6. Step 6: Final answer
    x = 137,102.04

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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.