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Finding the Fourth Proportional to 372,989.25, 558,820.47 and 214,891.02

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Solution

The fourth proportional to 372,989.25, 558,820.47 and 214,891.02 is: 321,954.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,989.25 : 558,820.47 = 214,891.02 : x
  2. Step 2: Convert to fraction form
    372,989.25/558,820.47 = 214,891.02/x
  3. Step 3: Cross multiply
    372,989.25x = 558,820.47 × 214,891.02
  4. Step 4: Simplify right side
    372,989.25x = 120,085,500,795.18
  5. Step 5: Solve for x
    x = 120,085,500,795.18/372,989.25
  6. Step 6: Final answer
    x = 321,954.32

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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.