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Finding the Fourth Proportional to 248,791.64, 343,327.21 and 151,962.21

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Solution

The fourth proportional to 248,791.64, 343,327.21 and 151,962.21 is: 209,704.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,791.64 : 343,327.21 = 151,962.21 : x
  2. Step 2: Convert to fraction form
    248,791.64/343,327.21 = 151,962.21/x
  3. Step 3: Cross multiply
    248,791.64x = 343,327.21 × 151,962.21
  4. Step 4: Simplify right side
    248,791.64x = 52,172,761,204.83
  5. Step 5: Solve for x
    x = 52,172,761,204.83/248,791.64
  6. Step 6: Final answer
    x = 209,704.64

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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.