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Finding the Fourth Proportional to 214,083.40, 321,125.10 and 200,961.40

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Solution

The fourth proportional to 214,083.40, 321,125.10 and 200,961.40 is: 301,442.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,083.40 : 321,125.10 = 200,961.40 : x
  2. Step 2: Convert to fraction form
    214,083.40/321,125.10 = 200,961.40/x
  3. Step 3: Cross multiply
    214,083.40x = 321,125.10 × 200,961.40
  4. Step 4: Simplify right side
    214,083.40x = 64,533,749,671.14
  5. Step 5: Solve for x
    x = 64,533,749,671.14/214,083.40
  6. Step 6: Final answer
    x = 301,442.10

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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.