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Finding the Fourth Proportional to 342,571.89, 513,892.37 and 117,902.80

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Solution

The fourth proportional to 342,571.89, 513,892.37 and 117,902.80 is: 176,866.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,571.89 : 513,892.37 = 117,902.80 : x
  2. Step 2: Convert to fraction form
    342,571.89/513,892.37 = 117,902.80/x
  3. Step 3: Cross multiply
    342,571.89x = 513,892.37 × 117,902.80
  4. Step 4: Simplify right side
    342,571.89x = 60,589,349,321.64
  5. Step 5: Solve for x
    x = 60,589,349,321.64/342,571.89
  6. Step 6: Final answer
    x = 176,866.09

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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.