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Finding the Fourth Proportional to 372,987.75, 558,818.22 and 214,889.52

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Solution

The fourth proportional to 372,987.75, 558,818.22 and 214,889.52 is: 321,952.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,987.75 : 558,818.22 = 214,889.52 : x
  2. Step 2: Convert to fraction form
    372,987.75/558,818.22 = 214,889.52/x
  3. Step 3: Cross multiply
    372,987.75x = 558,818.22 × 214,889.52
  4. Step 4: Simplify right side
    372,987.75x = 120,084,179,063.05
  5. Step 5: Solve for x
    x = 120,084,179,063.05/372,987.75
  6. Step 6: Final answer
    x = 321,952.07

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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.