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Finding the Fourth Proportional to 415,092.87, 622,726.79 and 134,588.25

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Solution

The fourth proportional to 415,092.87, 622,726.79 and 134,588.25 is: 201,910.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,092.87 : 622,726.79 = 134,588.25 : x
  2. Step 2: Convert to fraction form
    415,092.87/622,726.79 = 134,588.25/x
  3. Step 3: Cross multiply
    415,092.87x = 622,726.79 × 134,588.25
  4. Step 4: Simplify right side
    415,092.87x = 83,811,708,221.28
  5. Step 5: Solve for x
    x = 83,811,708,221.28/415,092.87
  6. Step 6: Final answer
    x = 201,910.74

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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.