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Finding the Fourth Proportional to 344,571.45, 516,881.81 and 91,850.64

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Solution

The fourth proportional to 344,571.45, 516,881.81 and 91,850.64 is: 137,782.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,571.45 : 516,881.81 = 91,850.64 : x
  2. Step 2: Convert to fraction form
    344,571.45/516,881.81 = 91,850.64/x
  3. Step 3: Cross multiply
    344,571.45x = 516,881.81 × 91,850.64
  4. Step 4: Simplify right side
    344,571.45x = 47,475,924,593.61
  5. Step 5: Solve for x
    x = 47,475,924,593.61/344,571.45
  6. Step 6: Final answer
    x = 137,782.53

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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.