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Finding the Fourth Proportional to 339,343.79, 508,240.51 and 161,975.66

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Solution

The fourth proportional to 339,343.79, 508,240.51 and 161,975.66 is: 242,593.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,343.79 : 508,240.51 = 161,975.66 : x
  2. Step 2: Convert to fraction form
    339,343.79/508,240.51 = 161,975.66/x
  3. Step 3: Cross multiply
    339,343.79x = 508,240.51 × 161,975.66
  4. Step 4: Simplify right side
    339,343.79x = 82,322,589,099.84
  5. Step 5: Solve for x
    x = 82,322,589,099.84/339,343.79
  6. Step 6: Final answer
    x = 242,593.48

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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.