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Finding the Fourth Proportional to 293,571.68, 440,426.49 and 91,157.43

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Solution

The fourth proportional to 293,571.68, 440,426.49 and 91,157.43 is: 136,757.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,571.68 : 440,426.49 = 91,157.43 : x
  2. Step 2: Convert to fraction form
    293,571.68/440,426.49 = 91,157.43/x
  3. Step 3: Cross multiply
    293,571.68x = 440,426.49 × 91,157.43
  4. Step 4: Simplify right side
    293,571.68x = 40,148,144,782.36
  5. Step 5: Solve for x
    x = 40,148,144,782.36/293,571.68
  6. Step 6: Final answer
    x = 136,757.55

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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.