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Finding the Fourth Proportional to 372,266.92, 558,390.30 and 91,786.60

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Solution

The fourth proportional to 372,266.92, 558,390.30 and 91,786.60 is: 137,677.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,266.92 : 558,390.30 = 91,786.60 : x
  2. Step 2: Convert to fraction form
    372,266.92/558,390.30 = 91,786.60/x
  3. Step 3: Cross multiply
    372,266.92x = 558,390.30 × 91,786.60
  4. Step 4: Simplify right side
    372,266.92x = 51,252,747,109.98
  5. Step 5: Solve for x
    x = 51,252,747,109.98/372,266.92
  6. Step 6: Final answer
    x = 137,677.41

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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.