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Finding the Fourth Proportional to 155,820.31, 214,984.18 and 95,327.89

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Solution

The fourth proportional to 155,820.31, 214,984.18 and 95,327.89 is: 131,523.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,820.31 : 214,984.18 = 95,327.89 : x
  2. Step 2: Convert to fraction form
    155,820.31/214,984.18 = 95,327.89/x
  3. Step 3: Cross multiply
    155,820.31x = 214,984.18 × 95,327.89
  4. Step 4: Simplify right side
    155,820.31x = 20,493,987,308.26
  5. Step 5: Solve for x
    x = 20,493,987,308.26/155,820.31
  6. Step 6: Final answer
    x = 131,523.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.