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Finding the Fourth Proportional to 344,391.94, 516,626.59 and 91,682.27

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Solution

The fourth proportional to 344,391.94, 516,626.59 and 91,682.27 is: 137,533.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,391.94 : 516,626.59 = 91,682.27 : x
  2. Step 2: Convert to fraction form
    344,391.94/516,626.59 = 91,682.27/x
  3. Step 3: Cross multiply
    344,391.94x = 516,626.59 × 91,682.27
  4. Step 4: Simplify right side
    344,391.94x = 47,365,498,513.56
  5. Step 5: Solve for x
    x = 47,365,498,513.56/344,391.94
  6. Step 6: Final answer
    x = 137,533.70

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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.